Home / 122,513.25-169,097.45-74,806.88

Finding the Fourth Proportional to 122,513.25, 169,097.45 and 74,806.88

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Solution

The fourth proportional to 122,513.25, 169,097.45 and 74,806.88 is: 103,251.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,513.25 : 169,097.45 = 74,806.88 : x
  2. Step 2: Convert to fraction form
    122,513.25/169,097.45 = 74,806.88/x
  3. Step 3: Cross multiply
    122,513.25x = 169,097.45 × 74,806.88
  4. Step 4: Simplify right side
    122,513.25x = 12,649,652,699.17
  5. Step 5: Solve for x
    x = 12,649,652,699.17/122,513.25
  6. Step 6: Final answer
    x = 103,251.30

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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.