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Finding the Fourth Proportional to 132,877.91, 183,372.57 and 72,448.97

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Solution

The fourth proportional to 132,877.91, 183,372.57 and 72,448.97 is: 99,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,877.91 : 183,372.57 = 72,448.97 : x
  2. Step 2: Convert to fraction form
    132,877.91/183,372.57 = 72,448.97/x
  3. Step 3: Cross multiply
    132,877.91x = 183,372.57 × 72,448.97
  4. Step 4: Simplify right side
    132,877.91x = 13,285,153,822.75
  5. Step 5: Solve for x
    x = 13,285,153,822.75/132,877.91
  6. Step 6: Final answer
    x = 99,980.15

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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.