Home / 129,367.83-178,468.61-93,501.03

Finding the Fourth Proportional to 129,367.83, 178,468.61 and 93,501.03

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Solution

The fourth proportional to 129,367.83, 178,468.61 and 93,501.03 is: 128,988.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,367.83 : 178,468.61 = 93,501.03 : x
  2. Step 2: Convert to fraction form
    129,367.83/178,468.61 = 93,501.03/x
  3. Step 3: Cross multiply
    129,367.83x = 178,468.61 × 93,501.03
  4. Step 4: Simplify right side
    129,367.83x = 16,686,998,390.16
  5. Step 5: Solve for x
    x = 16,686,998,390.16/129,367.83
  6. Step 6: Final answer
    x = 128,988.78

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Why These Related Problems?

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