Home / 123,220.22-170,043.90-66,631.58

Finding the Fourth Proportional to 123,220.22, 170,043.90 and 66,631.58

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Solution

The fourth proportional to 123,220.22, 170,043.90 and 66,631.58 is: 91,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,220.22 : 170,043.90 = 66,631.58 : x
  2. Step 2: Convert to fraction form
    123,220.22/170,043.90 = 66,631.58/x
  3. Step 3: Cross multiply
    123,220.22x = 170,043.90 × 66,631.58
  4. Step 4: Simplify right side
    123,220.22x = 11,330,293,726.36
  5. Step 5: Solve for x
    x = 11,330,293,726.36/123,220.22
  6. Step 6: Final answer
    x = 91,951.58

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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.