Home / 105,375.64-145,422.39-60,060.78

Finding the Fourth Proportional to 105,375.64, 145,422.39 and 60,060.78

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Solution

The fourth proportional to 105,375.64, 145,422.39 and 60,060.78 is: 82,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,375.64 : 145,422.39 = 60,060.78 : x
  2. Step 2: Convert to fraction form
    105,375.64/145,422.39 = 60,060.78/x
  3. Step 3: Cross multiply
    105,375.64x = 145,422.39 × 60,060.78
  4. Step 4: Simplify right side
    105,375.64x = 8,734,182,172.86
  5. Step 5: Solve for x
    x = 8,734,182,172.86/105,375.64
  6. Step 6: Final answer
    x = 82,886.16

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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.