Home / 122,785.96-169,432.82-75,087.50

Finding the Fourth Proportional to 122,785.96, 169,432.82 and 75,087.50

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Solution

The fourth proportional to 122,785.96, 169,432.82 and 75,087.50 is: 103,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,785.96 : 169,432.82 = 75,087.50 : x
  2. Step 2: Convert to fraction form
    122,785.96/169,432.82 = 75,087.50/x
  3. Step 3: Cross multiply
    122,785.96x = 169,432.82 × 75,087.50
  4. Step 4: Simplify right side
    122,785.96x = 12,722,286,871.75
  5. Step 5: Solve for x
    x = 12,722,286,871.75/122,785.96
  6. Step 6: Final answer
    x = 103,613.53

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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.