Home / 112,657.38-155,469.42-69,643.14

Finding the Fourth Proportional to 112,657.38, 155,469.42 and 69,643.14

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Solution

The fourth proportional to 112,657.38, 155,469.42 and 69,643.14 is: 96,108.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,657.38 : 155,469.42 = 69,643.14 : x
  2. Step 2: Convert to fraction form
    112,657.38/155,469.42 = 69,643.14/x
  3. Step 3: Cross multiply
    112,657.38x = 155,469.42 × 69,643.14
  4. Step 4: Simplify right side
    112,657.38x = 10,827,378,582.78
  5. Step 5: Solve for x
    x = 10,827,378,582.78/112,657.38
  6. Step 6: Final answer
    x = 96,108.92

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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.