Home / 157,424.10-236,136.15-86,565.30

Finding the Fourth Proportional to 157,424.10, 236,136.15 and 86,565.30

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Solution

The fourth proportional to 157,424.10, 236,136.15 and 86,565.30 is: 129,847.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,424.10 : 236,136.15 = 86,565.30 : x
  2. Step 2: Convert to fraction form
    157,424.10/236,136.15 = 86,565.30/x
  3. Step 3: Cross multiply
    157,424.10x = 236,136.15 × 86,565.30
  4. Step 4: Simplify right side
    157,424.10x = 20,441,196,665.60
  5. Step 5: Solve for x
    x = 20,441,196,665.60/157,424.10
  6. Step 6: Final answer
    x = 129,847.95

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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.