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Finding the Fourth Proportional to 85,498.68, 127,927.26 and 70,714.56

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Solution

The fourth proportional to 85,498.68, 127,927.26 and 70,714.56 is: 105,806.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,498.68 : 127,927.26 = 70,714.56 : x
  2. Step 2: Convert to fraction form
    85,498.68/127,927.26 = 70,714.56/x
  3. Step 3: Cross multiply
    85,498.68x = 127,927.26 × 70,714.56
  4. Step 4: Simplify right side
    85,498.68x = 9,046,319,902.91
  5. Step 5: Solve for x
    x = 9,046,319,902.91/85,498.68
  6. Step 6: Final answer
    x = 105,806.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.