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Finding the Fourth Proportional to 127,625.60, 191,443.08 and 65,223.20

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Solution

The fourth proportional to 127,625.60, 191,443.08 and 65,223.20 is: 97,837.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,625.60 : 191,443.08 = 65,223.20 : x
  2. Step 2: Convert to fraction form
    127,625.60/191,443.08 = 65,223.20/x
  3. Step 3: Cross multiply
    127,625.60x = 191,443.08 × 65,223.20
  4. Step 4: Simplify right side
    127,625.60x = 12,486,530,295.46
  5. Step 5: Solve for x
    x = 12,486,530,295.46/127,625.60
  6. Step 6: Final answer
    x = 97,837.19

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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.