Home / 100,111.92-138,182.04-59,853.12

Finding the Fourth Proportional to 100,111.92, 138,182.04 and 59,853.12

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Solution

The fourth proportional to 100,111.92, 138,182.04 and 59,853.12 is: 82,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,111.92 : 138,182.04 = 59,853.12 : x
  2. Step 2: Convert to fraction form
    100,111.92/138,182.04 = 59,853.12/x
  3. Step 3: Cross multiply
    100,111.92x = 138,182.04 × 59,853.12
  4. Step 4: Simplify right side
    100,111.92x = 8,270,626,221.96
  5. Step 5: Solve for x
    x = 8,270,626,221.96/100,111.92
  6. Step 6: Final answer
    x = 82,613.80

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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.