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Finding the Fourth Proportional to 127,548, 191,349.36 and 38,808.72

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Solution

The fourth proportional to 127,548, 191,349.36 and 38,808.72 is: 58,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,548 : 191,349.36 = 38,808.72 : x
  2. Step 2: Convert to fraction form
    127,548/191,349.36 = 38,808.72/x
  3. Step 3: Cross multiply
    127,548x = 191,349.36 × 38,808.72
  4. Step 4: Simplify right side
    127,548x = 7,426,023,734.42
  5. Step 5: Solve for x
    x = 7,426,023,734.42/127,548
  6. Step 6: Final answer
    x = 58,221.40

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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.