Home / 132,718.49-183,149.96-72,288.95

Finding the Fourth Proportional to 132,718.49, 183,149.96 and 72,288.95

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Solution

The fourth proportional to 132,718.49, 183,149.96 and 72,288.95 is: 99,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,718.49 : 183,149.96 = 72,288.95 : x
  2. Step 2: Convert to fraction form
    132,718.49/183,149.96 = 72,288.95/x
  3. Step 3: Cross multiply
    132,718.49x = 183,149.96 × 72,288.95
  4. Step 4: Simplify right side
    132,718.49x = 13,239,717,023.75
  5. Step 5: Solve for x
    x = 13,239,717,023.75/132,718.49
  6. Step 6: Final answer
    x = 99,757.90

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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.