Home / 91,016.16-136,550.16-66,081.12

Finding the Fourth Proportional to 91,016.16, 136,550.16 and 66,081.12

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Solution

The fourth proportional to 91,016.16, 136,550.16 and 66,081.12 is: 99,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,016.16 : 136,550.16 = 66,081.12 : x
  2. Step 2: Convert to fraction form
    91,016.16/136,550.16 = 66,081.12/x
  3. Step 3: Cross multiply
    91,016.16x = 136,550.16 × 66,081.12
  4. Step 4: Simplify right side
    91,016.16x = 9,023,387,508.98
  5. Step 5: Solve for x
    x = 9,023,387,508.98/91,016.16
  6. Step 6: Final answer
    x = 99,140.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.