Home / 161,738.20-242,607.30-128,042.20

Finding the Fourth Proportional to 161,738.20, 242,607.30 and 128,042.20

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Solution

The fourth proportional to 161,738.20, 242,607.30 and 128,042.20 is: 192,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,738.20 : 242,607.30 = 128,042.20 : x
  2. Step 2: Convert to fraction form
    161,738.20/242,607.30 = 128,042.20/x
  3. Step 3: Cross multiply
    161,738.20x = 242,607.30 × 128,042.20
  4. Step 4: Simplify right side
    161,738.20x = 31,063,972,428.06
  5. Step 5: Solve for x
    x = 31,063,972,428.06/161,738.20
  6. Step 6: Final answer
    x = 192,063.30

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1.5x scale

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.