Home / 91,200.02-125,908.38-69,519.56

Finding the Fourth Proportional to 91,200.02, 125,908.38 and 69,519.56

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Solution

The fourth proportional to 91,200.02, 125,908.38 and 69,519.56 is: 95,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,200.02 : 125,908.38 = 69,519.56 : x
  2. Step 2: Convert to fraction form
    91,200.02/125,908.38 = 69,519.56/x
  3. Step 3: Cross multiply
    91,200.02x = 125,908.38 × 69,519.56
  4. Step 4: Simplify right side
    91,200.02x = 8,753,095,177.91
  5. Step 5: Solve for x
    x = 8,753,095,177.91/91,200.02
  6. Step 6: Final answer
    x = 95,976.90

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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.