Home / 133,107.43-183,686.85-72,677.88

Finding the Fourth Proportional to 133,107.43, 183,686.85 and 72,677.88

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Solution

The fourth proportional to 133,107.43, 183,686.85 and 72,677.88 is: 100,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,107.43 : 183,686.85 = 72,677.88 : x
  2. Step 2: Convert to fraction form
    133,107.43/183,686.85 = 72,677.88/x
  3. Step 3: Cross multiply
    133,107.43x = 183,686.85 × 72,677.88
  4. Step 4: Simplify right side
    133,107.43x = 13,349,970,841.88
  5. Step 5: Solve for x
    x = 13,349,970,841.88/133,107.43
  6. Step 6: Final answer
    x = 100,294.71

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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.