Home / 122,778.57-169,432.71-69,063.59

Finding the Fourth Proportional to 122,778.57, 169,432.71 and 69,063.59

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Solution

The fourth proportional to 122,778.57, 169,432.71 and 69,063.59 is: 95,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,778.57 : 169,432.71 = 69,063.59 : x
  2. Step 2: Convert to fraction form
    122,778.57/169,432.71 = 69,063.59/x
  3. Step 3: Cross multiply
    122,778.57x = 169,432.71 × 69,063.59
  4. Step 4: Simplify right side
    122,778.57x = 11,701,630,368.87
  5. Step 5: Solve for x
    x = 11,701,630,368.87/122,778.57
  6. Step 6: Final answer
    x = 95,306.78

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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.