Home / 133,119.20-183,711.96-72,695.46

Finding the Fourth Proportional to 133,119.20, 183,711.96 and 72,695.46

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Solution

The fourth proportional to 133,119.20, 183,711.96 and 72,695.46 is: 100,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,119.20 : 183,711.96 = 72,695.46 : x
  2. Step 2: Convert to fraction form
    133,119.20/183,711.96 = 72,695.46/x
  3. Step 3: Cross multiply
    133,119.20x = 183,711.96 × 72,695.46
  4. Step 4: Simplify right side
    133,119.20x = 13,355,025,439.70
  5. Step 5: Solve for x
    x = 13,355,025,439.70/133,119.20
  6. Step 6: Final answer
    x = 100,323.81

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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.