Home / 132,641.20-183,046.71-72,213.67

Finding the Fourth Proportional to 132,641.20, 183,046.71 and 72,213.67

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Solution

The fourth proportional to 132,641.20, 183,046.71 and 72,213.67 is: 99,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,641.20 : 183,046.71 = 72,213.67 : x
  2. Step 2: Convert to fraction form
    132,641.20/183,046.71 = 72,213.67/x
  3. Step 3: Cross multiply
    132,641.20x = 183,046.71 × 72,213.67
  4. Step 4: Simplify right side
    132,641.20x = 13,218,474,710.53
  5. Step 5: Solve for x
    x = 13,218,474,710.53/132,641.20
  6. Step 6: Final answer
    x = 99,655.87

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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.