Home / 85,148.55-116,654.06-81,956.13

Finding the Fourth Proportional to 85,148.55, 116,654.06 and 81,956.13

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Solution

The fourth proportional to 85,148.55, 116,654.06 and 81,956.13 is: 112,280.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,148.55 : 116,654.06 = 81,956.13 : x
  2. Step 2: Convert to fraction form
    85,148.55/116,654.06 = 81,956.13/x
  3. Step 3: Cross multiply
    85,148.55x = 116,654.06 × 81,956.13
  4. Step 4: Simplify right side
    85,148.55x = 9,560,514,896.61
  5. Step 5: Solve for x
    x = 9,560,514,896.61/85,148.55
  6. Step 6: Final answer
    x = 112,280.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.