Home / 99,364.32-137,086.02-59,079.78

Finding the Fourth Proportional to 99,364.32, 137,086.02 and 59,079.78

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Solution

The fourth proportional to 99,364.32, 137,086.02 and 59,079.78 is: 81,508.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.32 : 137,086.02 = 59,079.78 : x
  2. Step 2: Convert to fraction form
    99,364.32/137,086.02 = 59,079.78/x
  3. Step 3: Cross multiply
    99,364.32x = 137,086.02 × 59,079.78
  4. Step 4: Simplify right side
    99,364.32x = 8,099,011,902.68
  5. Step 5: Solve for x
    x = 8,099,011,902.68/99,364.32
  6. Step 6: Final answer
    x = 81,508.25

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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.