Home / 133,149.14-183,737.68-72,707.50

Finding the Fourth Proportional to 133,149.14, 183,737.68 and 72,707.50

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Solution

The fourth proportional to 133,149.14, 183,737.68 and 72,707.50 is: 100,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,149.14 : 183,737.68 = 72,707.50 : x
  2. Step 2: Convert to fraction form
    133,149.14/183,737.68 = 72,707.50/x
  3. Step 3: Cross multiply
    133,149.14x = 183,737.68 × 72,707.50
  4. Step 4: Simplify right side
    133,149.14x = 13,359,107,368.60
  5. Step 5: Solve for x
    x = 13,359,107,368.60/133,149.14
  6. Step 6: Final answer
    x = 100,331.91

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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.