Home / 123,575.89-170,542.08-69,865.91

Finding the Fourth Proportional to 123,575.89, 170,542.08 and 69,865.91

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Solution

The fourth proportional to 123,575.89, 170,542.08 and 69,865.91 is: 96,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,575.89 : 170,542.08 = 69,865.91 : x
  2. Step 2: Convert to fraction form
    123,575.89/170,542.08 = 69,865.91/x
  3. Step 3: Cross multiply
    123,575.89x = 170,542.08 × 69,865.91
  4. Step 4: Simplify right side
    123,575.89x = 11,915,076,410.45
  5. Step 5: Solve for x
    x = 11,915,076,410.45/123,575.89
  6. Step 6: Final answer
    x = 96,419.10

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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.