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Finding the Fourth Proportional to 127,889.62, 191,849.23 and 42,508.10

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Solution

The fourth proportional to 127,889.62, 191,849.23 and 42,508.10 is: 63,767.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,889.62 : 191,849.23 = 42,508.10 : x
  2. Step 2: Convert to fraction form
    127,889.62/191,849.23 = 42,508.10/x
  3. Step 3: Cross multiply
    127,889.62x = 191,849.23 × 42,508.10
  4. Step 4: Simplify right side
    127,889.62x = 8,155,145,707.37
  5. Step 5: Solve for x
    x = 8,155,145,707.37/127,889.62
  6. Step 6: Final answer
    x = 63,767.07

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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.