Home / 112,425.24-155,140.74-62,121

Finding the Fourth Proportional to 112,425.24, 155,140.74 and 62,121

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Solution

The fourth proportional to 112,425.24, 155,140.74 and 62,121 is: 85,723.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,425.24 : 155,140.74 = 62,121 : x
  2. Step 2: Convert to fraction form
    112,425.24/155,140.74 = 62,121/x
  3. Step 3: Cross multiply
    112,425.24x = 155,140.74 × 62,121
  4. Step 4: Simplify right side
    112,425.24x = 9,637,497,909.54
  5. Step 5: Solve for x
    x = 9,637,497,909.54/112,425.24
  6. Step 6: Final answer
    x = 85,723.61

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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.