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Finding the Fourth Proportional to 133,159.52, 183,760.13 and 72,730.31

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Solution

The fourth proportional to 133,159.52, 183,760.13 and 72,730.31 is: 100,367.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,159.52 : 183,760.13 = 72,730.31 : x
  2. Step 2: Convert to fraction form
    133,159.52/183,760.13 = 72,730.31/x
  3. Step 3: Cross multiply
    133,159.52x = 183,760.13 × 72,730.31
  4. Step 4: Simplify right side
    133,159.52x = 13,364,930,381.29
  5. Step 5: Solve for x
    x = 13,364,930,381.29/133,159.52
  6. Step 6: Final answer
    x = 100,367.82

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1.5x scale

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.