Home / 126,503.08-189,785.76-89,136.13

Finding the Fourth Proportional to 126,503.08, 189,785.76 and 89,136.13

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Solution

The fourth proportional to 126,503.08, 189,785.76 and 89,136.13 is: 133,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,503.08 : 189,785.76 = 89,136.13 : x
  2. Step 2: Convert to fraction form
    126,503.08/189,785.76 = 89,136.13/x
  3. Step 3: Cross multiply
    126,503.08x = 189,785.76 × 89,136.13
  4. Step 4: Simplify right side
    126,503.08x = 16,916,768,175.51
  5. Step 5: Solve for x
    x = 16,916,768,175.51/126,503.08
  6. Step 6: Final answer
    x = 133,726.14

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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.