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Finding the Fourth Proportional to 127,468.32, 175,859.28 and 77,148.96

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Solution

The fourth proportional to 127,468.32, 175,859.28 and 77,148.96 is: 106,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,468.32 : 175,859.28 = 77,148.96 : x
  2. Step 2: Convert to fraction form
    127,468.32/175,859.28 = 77,148.96/x
  3. Step 3: Cross multiply
    127,468.32x = 175,859.28 × 77,148.96
  4. Step 4: Simplify right side
    127,468.32x = 13,567,360,558.35
  5. Step 5: Solve for x
    x = 13,567,360,558.35/127,468.32
  6. Step 6: Final answer
    x = 106,437.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.