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Finding the Fourth Proportional to 127,719.22, 191,587.47 and 48,841.78

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Solution

The fourth proportional to 127,719.22, 191,587.47 and 48,841.78 is: 73,265.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,719.22 : 191,587.47 = 48,841.78 : x
  2. Step 2: Convert to fraction form
    127,719.22/191,587.47 = 48,841.78/x
  3. Step 3: Cross multiply
    127,719.22x = 191,587.47 × 48,841.78
  4. Step 4: Simplify right side
    127,719.22x = 9,357,473,060.50
  5. Step 5: Solve for x
    x = 9,357,473,060.50/127,719.22
  6. Step 6: Final answer
    x = 73,265.97

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