Home / 153,694.75-212,100.38-86,626.75

Finding the Fourth Proportional to 153,694.75, 212,100.38 and 86,626.75

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Solution

The fourth proportional to 153,694.75, 212,100.38 and 86,626.75 is: 119,545.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,694.75 : 212,100.38 = 86,626.75 : x
  2. Step 2: Convert to fraction form
    153,694.75/212,100.38 = 86,626.75/x
  3. Step 3: Cross multiply
    153,694.75x = 212,100.38 × 86,626.75
  4. Step 4: Simplify right side
    153,694.75x = 18,373,566,593.17
  5. Step 5: Solve for x
    x = 18,373,566,593.17/153,694.75
  6. Step 6: Final answer
    x = 119,545.83

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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.