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Finding the Fourth Proportional to 112,523.80, 168,656.10 and 45,920.20

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Solution

The fourth proportional to 112,523.80, 168,656.10 and 45,920.20 is: 68,827.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,523.80 : 168,656.10 = 45,920.20 : x
  2. Step 2: Convert to fraction form
    112,523.80/168,656.10 = 45,920.20/x
  3. Step 3: Cross multiply
    112,523.80x = 168,656.10 × 45,920.20
  4. Step 4: Simplify right side
    112,523.80x = 7,744,721,843.22
  5. Step 5: Solve for x
    x = 7,744,721,843.22/112,523.80
  6. Step 6: Final answer
    x = 68,827.41

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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.