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Finding the Fourth Proportional to 122,029.98, 168,499.35 and 98,079.90

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Solution

The fourth proportional to 122,029.98, 168,499.35 and 98,079.90 is: 135,429.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,029.98 : 168,499.35 = 98,079.90 : x
  2. Step 2: Convert to fraction form
    122,029.98/168,499.35 = 98,079.90/x
  3. Step 3: Cross multiply
    122,029.98x = 168,499.35 × 98,079.90
  4. Step 4: Simplify right side
    122,029.98x = 16,526,399,398.07
  5. Step 5: Solve for x
    x = 16,526,399,398.07/122,029.98
  6. Step 6: Final answer
    x = 135,429.01

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1.5x scale

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.