Home / 132,680.40-183,100.95-72,253.86

Finding the Fourth Proportional to 132,680.40, 183,100.95 and 72,253.86

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Solution

The fourth proportional to 132,680.40, 183,100.95 and 72,253.86 is: 99,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,680.40 : 183,100.95 = 72,253.86 : x
  2. Step 2: Convert to fraction form
    132,680.40/183,100.95 = 72,253.86/x
  3. Step 3: Cross multiply
    132,680.40x = 183,100.95 × 72,253.86
  4. Step 4: Simplify right side
    132,680.40x = 13,229,750,407.17
  5. Step 5: Solve for x
    x = 13,229,750,407.17/132,680.40
  6. Step 6: Final answer
    x = 99,711.41

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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.