Home / 161,752,660.80-242,628,991.20-115,836,158.40

Finding the Fourth Proportional to 161,752,660.80, 242,628,991.20 and 115,836,158.40

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Solution

The fourth proportional to 161,752,660.80, 242,628,991.20 and 115,836,158.40 is: 173,754,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,752,660.80 : 242,628,991.20 = 115,836,158.40 : x
  2. Step 2: Convert to fraction form
    161,752,660.80/242,628,991.20 = 115,836,158.40/x
  3. Step 3: Cross multiply
    161,752,660.80x = 242,628,991.20 × 115,836,158.40
  4. Step 4: Simplify right side
    161,752,660.80x = 28,105,210,257,075,408
  5. Step 5: Solve for x
    x = 28,105,210,257,075,408/161,752,660.80
  6. Step 6: Final answer
    x = 173,754,237.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.