Home / 101,577.38-140,130.26-65,778.93

Finding the Fourth Proportional to 101,577.38, 140,130.26 and 65,778.93

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Solution

The fourth proportional to 101,577.38, 140,130.26 and 65,778.93 is: 90,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,577.38 : 140,130.26 = 65,778.93 : x
  2. Step 2: Convert to fraction form
    101,577.38/140,130.26 = 65,778.93/x
  3. Step 3: Cross multiply
    101,577.38x = 140,130.26 × 65,778.93
  4. Step 4: Simplify right side
    101,577.38x = 9,217,618,234.53
  5. Step 5: Solve for x
    x = 9,217,618,234.53/101,577.38
  6. Step 6: Final answer
    x = 90,744.80

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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.