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Finding the Fourth Proportional to 124,753.88, 172,164.60 and 68,168.90

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Solution

The fourth proportional to 124,753.88, 172,164.60 and 68,168.90 is: 94,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,753.88 : 172,164.60 = 68,168.90 : x
  2. Step 2: Convert to fraction form
    124,753.88/172,164.60 = 68,168.90/x
  3. Step 3: Cross multiply
    124,753.88x = 172,164.60 × 68,168.90
  4. Step 4: Simplify right side
    124,753.88x = 11,736,270,540.12
  5. Step 5: Solve for x
    x = 11,736,270,540.12/124,753.88
  6. Step 6: Final answer
    x = 94,075.40

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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.