Home / 100,912.08-151,372.92-38,587.92

Finding the Fourth Proportional to 100,912.08, 151,372.92 and 38,587.92

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Solution

The fourth proportional to 100,912.08, 151,372.92 and 38,587.92 is: 57,883.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,912.08 : 151,372.92 = 38,587.92 : x
  2. Step 2: Convert to fraction form
    100,912.08/151,372.92 = 38,587.92/x
  3. Step 3: Cross multiply
    100,912.08x = 151,372.92 × 38,587.92
  4. Step 4: Simplify right side
    100,912.08x = 5,841,166,127.13
  5. Step 5: Solve for x
    x = 5,841,166,127.13/100,912.08
  6. Step 6: Final answer
    x = 57,883.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.