Home / 161,868.40-242,802.60-105,881.20

Finding the Fourth Proportional to 161,868.40, 242,802.60 and 105,881.20

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Solution

The fourth proportional to 161,868.40, 242,802.60 and 105,881.20 is: 158,821.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,868.40 : 242,802.60 = 105,881.20 : x
  2. Step 2: Convert to fraction form
    161,868.40/242,802.60 = 105,881.20/x
  3. Step 3: Cross multiply
    161,868.40x = 242,802.60 × 105,881.20
  4. Step 4: Simplify right side
    161,868.40x = 25,708,230,651.12
  5. Step 5: Solve for x
    x = 25,708,230,651.12/161,868.40
  6. Step 6: Final answer
    x = 158,821.80

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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.