Home / 207,023.03-310,534.38-66,781.65

Finding the Fourth Proportional to 207,023.03, 310,534.38 and 66,781.65

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Solution

The fourth proportional to 207,023.03, 310,534.38 and 66,781.65 is: 100,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,023.03 : 310,534.38 = 66,781.65 : x
  2. Step 2: Convert to fraction form
    207,023.03/310,534.38 = 66,781.65/x
  3. Step 3: Cross multiply
    207,023.03x = 310,534.38 × 66,781.65
  4. Step 4: Simplify right side
    207,023.03x = 20,737,998,278.13
  5. Step 5: Solve for x
    x = 20,737,998,278.13/207,023.03
  6. Step 6: Final answer
    x = 100,172.42

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1.5x scale

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.