Home / 123,440.80-170,348.40-69,725.92

Finding the Fourth Proportional to 123,440.80, 170,348.40 and 69,725.92

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Solution

The fourth proportional to 123,440.80, 170,348.40 and 69,725.92 is: 96,221.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,440.80 : 170,348.40 = 69,725.92 : x
  2. Step 2: Convert to fraction form
    123,440.80/170,348.40 = 69,725.92/x
  3. Step 3: Cross multiply
    123,440.80x = 170,348.40 × 69,725.92
  4. Step 4: Simplify right side
    123,440.80x = 11,877,698,910.53
  5. Step 5: Solve for x
    x = 11,877,698,910.53/123,440.80
  6. Step 6: Final answer
    x = 96,221.82

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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.