Home / 112,542.62-155,235.60-72,192.47

Finding the Fourth Proportional to 112,542.62, 155,235.60 and 72,192.47

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Solution

The fourth proportional to 112,542.62, 155,235.60 and 72,192.47 is: 99,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,542.62 : 155,235.60 = 72,192.47 : x
  2. Step 2: Convert to fraction form
    112,542.62/155,235.60 = 72,192.47/x
  3. Step 3: Cross multiply
    112,542.62x = 155,235.60 × 72,192.47
  4. Step 4: Simplify right side
    112,542.62x = 11,206,840,619.75
  5. Step 5: Solve for x
    x = 11,206,840,619.75/112,542.62
  6. Step 6: Final answer
    x = 99,578.64

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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.