Home / 123,391.02-170,278.56-66,801.90

Finding the Fourth Proportional to 123,391.02, 170,278.56 and 66,801.90

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Solution

The fourth proportional to 123,391.02, 170,278.56 and 66,801.90 is: 92,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,391.02 : 170,278.56 = 66,801.90 : x
  2. Step 2: Convert to fraction form
    123,391.02/170,278.56 = 66,801.90/x
  3. Step 3: Cross multiply
    123,391.02x = 170,278.56 × 66,801.90
  4. Step 4: Simplify right side
    123,391.02x = 11,374,931,337.26
  5. Step 5: Solve for x
    x = 11,374,931,337.26/123,391.02
  6. Step 6: Final answer
    x = 92,186.05

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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.