Home / 109,660.56-151,330.30-61,915.92

Finding the Fourth Proportional to 109,660.56, 151,330.30 and 61,915.92

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Solution

The fourth proportional to 109,660.56, 151,330.30 and 61,915.92 is: 85,443.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.56 : 151,330.30 = 61,915.92 : x
  2. Step 2: Convert to fraction form
    109,660.56/151,330.30 = 61,915.92/x
  3. Step 3: Cross multiply
    109,660.56x = 151,330.30 × 61,915.92
  4. Step 4: Simplify right side
    109,660.56x = 9,369,754,748.38
  5. Step 5: Solve for x
    x = 9,369,754,748.38/109,660.56
  6. Step 6: Final answer
    x = 85,443.25

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1.5x scale

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.