Home / 109,520.92-151,126.18-61,775.07

Finding the Fourth Proportional to 109,520.92, 151,126.18 and 61,775.07

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Solution

The fourth proportional to 109,520.92, 151,126.18 and 61,775.07 is: 85,242.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,520.92 : 151,126.18 = 61,775.07 : x
  2. Step 2: Convert to fraction form
    109,520.92/151,126.18 = 61,775.07/x
  3. Step 3: Cross multiply
    109,520.92x = 151,126.18 × 61,775.07
  4. Step 4: Simplify right side
    109,520.92x = 9,335,830,348.33
  5. Step 5: Solve for x
    x = 9,335,830,348.33/109,520.92
  6. Step 6: Final answer
    x = 85,242.44

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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.