Home / 125,154.39-187,840.94-72,491.43

Finding the Fourth Proportional to 125,154.39, 187,840.94 and 72,491.43

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Solution

The fourth proportional to 125,154.39, 187,840.94 and 72,491.43 is: 108,800.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,154.39 : 187,840.94 = 72,491.43 : x
  2. Step 2: Convert to fraction form
    125,154.39/187,840.94 = 72,491.43/x
  3. Step 3: Cross multiply
    125,154.39x = 187,840.94 × 72,491.43
  4. Step 4: Simplify right side
    125,154.39x = 13,616,857,990.69
  5. Step 5: Solve for x
    x = 13,616,857,990.69/125,154.39
  6. Step 6: Final answer
    x = 108,800.48

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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.