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Finding the Fourth Proportional to 132,833.66, 183,309.28 and 72,404.30

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Solution

The fourth proportional to 132,833.66, 183,309.28 and 72,404.30 is: 99,917.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,833.66 : 183,309.28 = 72,404.30 : x
  2. Step 2: Convert to fraction form
    132,833.66/183,309.28 = 72,404.30/x
  3. Step 3: Cross multiply
    132,833.66x = 183,309.28 × 72,404.30
  4. Step 4: Simplify right side
    132,833.66x = 13,272,380,101.90
  5. Step 5: Solve for x
    x = 13,272,380,101.90/132,833.66
  6. Step 6: Final answer
    x = 99,917.30

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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.