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Finding the Fourth Proportional to 122,597.64, 169,279.22 and 98,830.41

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Solution

The fourth proportional to 122,597.64, 169,279.22 and 98,830.41 is: 136,462.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,597.64 : 169,279.22 = 98,830.41 : x
  2. Step 2: Convert to fraction form
    122,597.64/169,279.22 = 98,830.41/x
  3. Step 3: Cross multiply
    122,597.64x = 169,279.22 × 98,830.41
  4. Step 4: Simplify right side
    122,597.64x = 16,729,934,222.93
  5. Step 5: Solve for x
    x = 16,729,934,222.93/122,597.64
  6. Step 6: Final answer
    x = 136,462.12

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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.