Home / 132,470.27-182,808.08-72,040.76

Finding the Fourth Proportional to 132,470.27, 182,808.08 and 72,040.76

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Solution

The fourth proportional to 132,470.27, 182,808.08 and 72,040.76 is: 99,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,470.27 : 182,808.08 = 72,040.76 : x
  2. Step 2: Convert to fraction form
    132,470.27/182,808.08 = 72,040.76/x
  3. Step 3: Cross multiply
    132,470.27x = 182,808.08 × 72,040.76
  4. Step 4: Simplify right side
    132,470.27x = 13,169,631,743.10
  5. Step 5: Solve for x
    x = 13,169,631,743.10/132,470.27
  6. Step 6: Final answer
    x = 99,415.76

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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.