Home / 92,128.48-137,425.20-90,604.24

Finding the Fourth Proportional to 92,128.48, 137,425.20 and 90,604.24

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Solution

The fourth proportional to 92,128.48, 137,425.20 and 90,604.24 is: 135,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,128.48 : 137,425.20 = 90,604.24 : x
  2. Step 2: Convert to fraction form
    92,128.48/137,425.20 = 90,604.24/x
  3. Step 3: Cross multiply
    92,128.48x = 137,425.20 × 90,604.24
  4. Step 4: Simplify right side
    92,128.48x = 12,451,305,802.85
  5. Step 5: Solve for x
    x = 12,451,305,802.85/92,128.48
  6. Step 6: Final answer
    x = 135,151.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.