Home / 115,020.60-172,142.10-101,023.80

Finding the Fourth Proportional to 115,020.60, 172,142.10 and 101,023.80

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Solution

The fourth proportional to 115,020.60, 172,142.10 and 101,023.80 is: 151,194.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,020.60 : 172,142.10 = 101,023.80 : x
  2. Step 2: Convert to fraction form
    115,020.60/172,142.10 = 101,023.80/x
  3. Step 3: Cross multiply
    115,020.60x = 172,142.10 × 101,023.80
  4. Step 4: Simplify right side
    115,020.60x = 17,390,449,081.98
  5. Step 5: Solve for x
    x = 17,390,449,081.98/115,020.60
  6. Step 6: Final answer
    x = 151,194.21

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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.