Home / 102,853.44-141,890.40-71,066.88

Finding the Fourth Proportional to 102,853.44, 141,890.40 and 71,066.88

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Solution

The fourth proportional to 102,853.44, 141,890.40 and 71,066.88 is: 98,039.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,853.44 : 141,890.40 = 71,066.88 : x
  2. Step 2: Convert to fraction form
    102,853.44/141,890.40 = 71,066.88/x
  3. Step 3: Cross multiply
    102,853.44x = 141,890.40 × 71,066.88
  4. Step 4: Simplify right side
    102,853.44x = 10,083,708,029.95
  5. Step 5: Solve for x
    x = 10,083,708,029.95/102,853.44
  6. Step 6: Final answer
    x = 98,039.58

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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.