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Finding the Fourth Proportional to 102,274.88, 141,182.88 and 68,760.32

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Solution

The fourth proportional to 102,274.88, 141,182.88 and 68,760.32 is: 94,918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,274.88 : 141,182.88 = 68,760.32 : x
  2. Step 2: Convert to fraction form
    102,274.88/141,182.88 = 68,760.32/x
  3. Step 3: Cross multiply
    102,274.88x = 141,182.88 × 68,760.32
  4. Step 4: Simplify right side
    102,274.88x = 9,707,780,007.32
  5. Step 5: Solve for x
    x = 9,707,780,007.32/102,274.88
  6. Step 6: Final answer
    x = 94,918.52

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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.