Home / 122,631.60-169,221.15-68,912.40

Finding the Fourth Proportional to 122,631.60, 169,221.15 and 68,912.40

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Solution

The fourth proportional to 122,631.60, 169,221.15 and 68,912.40 is: 95,093.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,631.60 : 169,221.15 = 68,912.40 : x
  2. Step 2: Convert to fraction form
    122,631.60/169,221.15 = 68,912.40/x
  3. Step 3: Cross multiply
    122,631.60x = 169,221.15 × 68,912.40
  4. Step 4: Simplify right side
    122,631.60x = 11,661,435,577.26
  5. Step 5: Solve for x
    x = 11,661,435,577.26/122,631.60
  6. Step 6: Final answer
    x = 95,093.24

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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.