Home / 132,470.18-182,807.95-72,040.66

Finding the Fourth Proportional to 132,470.18, 182,807.95 and 72,040.66

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Solution

The fourth proportional to 132,470.18, 182,807.95 and 72,040.66 is: 99,415.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,470.18 : 182,807.95 = 72,040.66 : x
  2. Step 2: Convert to fraction form
    132,470.18/182,807.95 = 72,040.66/x
  3. Step 3: Cross multiply
    132,470.18x = 182,807.95 × 72,040.66
  4. Step 4: Simplify right side
    132,470.18x = 13,169,605,419.66
  5. Step 5: Solve for x
    x = 13,169,605,419.66/132,470.18
  6. Step 6: Final answer
    x = 99,415.62

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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.