Home / 133,124.28-183,710.07-72,694.74

Finding the Fourth Proportional to 133,124.28, 183,710.07 and 72,694.74

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Solution

The fourth proportional to 133,124.28, 183,710.07 and 72,694.74 is: 100,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,124.28 : 183,710.07 = 72,694.74 : x
  2. Step 2: Convert to fraction form
    133,124.28/183,710.07 = 72,694.74/x
  3. Step 3: Cross multiply
    133,124.28x = 183,710.07 × 72,694.74
  4. Step 4: Simplify right side
    133,124.28x = 13,354,755,774.03
  5. Step 5: Solve for x
    x = 13,354,755,774.03/133,124.28
  6. Step 6: Final answer
    x = 100,317.96

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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.