Home / 112,425.92-155,149.98-61,441.80

Finding the Fourth Proportional to 112,425.92, 155,149.98 and 61,441.80

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Solution

The fourth proportional to 112,425.92, 155,149.98 and 61,441.80 is: 84,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,425.92 : 155,149.98 = 61,441.80 : x
  2. Step 2: Convert to fraction form
    112,425.92/155,149.98 = 61,441.80/x
  3. Step 3: Cross multiply
    112,425.92x = 155,149.98 × 61,441.80
  4. Step 4: Simplify right side
    112,425.92x = 9,532,694,041.16
  5. Step 5: Solve for x
    x = 9,532,694,041.16/112,425.92
  6. Step 6: Final answer
    x = 84,790.90

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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.