Home / 133,280.46-183,931.29-72,849.78

Finding the Fourth Proportional to 133,280.46, 183,931.29 and 72,849.78

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Solution

The fourth proportional to 133,280.46, 183,931.29 and 72,849.78 is: 100,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,280.46 : 183,931.29 = 72,849.78 : x
  2. Step 2: Convert to fraction form
    133,280.46/183,931.29 = 72,849.78/x
  3. Step 3: Cross multiply
    133,280.46x = 183,931.29 × 72,849.78
  4. Step 4: Simplify right side
    133,280.46x = 13,399,354,011.62
  5. Step 5: Solve for x
    x = 13,399,354,011.62/133,280.46
  6. Step 6: Final answer
    x = 100,535.02

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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.