Home / 99,086.48-136,770.60-66,867.92

Finding the Fourth Proportional to 99,086.48, 136,770.60 and 66,867.92

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Solution

The fourth proportional to 99,086.48, 136,770.60 and 66,867.92 is: 92,298.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,086.48 : 136,770.60 = 66,867.92 : x
  2. Step 2: Convert to fraction form
    99,086.48/136,770.60 = 66,867.92/x
  3. Step 3: Cross multiply
    99,086.48x = 136,770.60 × 66,867.92
  4. Step 4: Simplify right side
    99,086.48x = 9,145,565,539.15
  5. Step 5: Solve for x
    x = 9,145,565,539.15/99,086.48
  6. Step 6: Final answer
    x = 92,298.82

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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.