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Finding the Fourth Proportional to 127,269.67, 190,879.80 and 38,502.40

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Solution

The fourth proportional to 127,269.67, 190,879.80 and 38,502.40 is: 57,746.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,269.67 : 190,879.80 = 38,502.40 : x
  2. Step 2: Convert to fraction form
    127,269.67/190,879.80 = 38,502.40/x
  3. Step 3: Cross multiply
    127,269.67x = 190,879.80 × 38,502.40
  4. Step 4: Simplify right side
    127,269.67x = 7,349,330,411.52
  5. Step 5: Solve for x
    x = 7,349,330,411.52/127,269.67
  6. Step 6: Final answer
    x = 57,746.13

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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.