Home / 123,542.10-170,488.06-66,953.48

Finding the Fourth Proportional to 123,542.10, 170,488.06 and 66,953.48

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Solution

The fourth proportional to 123,542.10, 170,488.06 and 66,953.48 is: 92,395.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.10 : 170,488.06 = 66,953.48 : x
  2. Step 2: Convert to fraction form
    123,542.10/170,488.06 = 66,953.48/x
  3. Step 3: Cross multiply
    123,542.10x = 170,488.06 × 66,953.48
  4. Step 4: Simplify right side
    123,542.10x = 11,414,768,915.45
  5. Step 5: Solve for x
    x = 11,414,768,915.45/123,542.10
  6. Step 6: Final answer
    x = 92,395.78

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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.