Home / 132,546.78-182,915.35-72,117.88

Finding the Fourth Proportional to 132,546.78, 182,915.35 and 72,117.88

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Solution

The fourth proportional to 132,546.78, 182,915.35 and 72,117.88 is: 99,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,546.78 : 182,915.35 = 72,117.88 : x
  2. Step 2: Convert to fraction form
    132,546.78/182,915.35 = 72,117.88/x
  3. Step 3: Cross multiply
    132,546.78x = 182,915.35 × 72,117.88
  4. Step 4: Simplify right side
    132,546.78x = 13,191,466,623.87
  5. Step 5: Solve for x
    x = 13,191,466,623.87/132,546.78
  6. Step 6: Final answer
    x = 99,523.10

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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.