Home / 113,132.50-156,136.62-65,386.24

Finding the Fourth Proportional to 113,132.50, 156,136.62 and 65,386.24

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Solution

The fourth proportional to 113,132.50, 156,136.62 and 65,386.24 is: 90,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,132.50 : 156,136.62 = 65,386.24 : x
  2. Step 2: Convert to fraction form
    113,132.50/156,136.62 = 65,386.24/x
  3. Step 3: Cross multiply
    113,132.50x = 156,136.62 × 65,386.24
  4. Step 4: Simplify right side
    113,132.50x = 10,209,186,508.11
  5. Step 5: Solve for x
    x = 10,209,186,508.11/113,132.50
  6. Step 6: Final answer
    x = 90,240.97

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.