Home / 112,425.96-155,149.86-61,440.85

Finding the Fourth Proportional to 112,425.96, 155,149.86 and 61,440.85

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Solution

The fourth proportional to 112,425.96, 155,149.86 and 61,440.85 is: 84,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,425.96 : 155,149.86 = 61,440.85 : x
  2. Step 2: Convert to fraction form
    112,425.96/155,149.86 = 61,440.85/x
  3. Step 3: Cross multiply
    112,425.96x = 155,149.86 × 61,440.85
  4. Step 4: Simplify right side
    112,425.96x = 9,532,538,827.40
  5. Step 5: Solve for x
    x = 9,532,538,827.40/112,425.96
  6. Step 6: Final answer
    x = 84,789.48

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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.