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Finding the Fourth Proportional to 162,820.71, 243,810.45 and 112,375.44

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Solution

The fourth proportional to 162,820.71, 243,810.45 and 112,375.44 is: 168,272.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,820.71 : 243,810.45 = 112,375.44 : x
  2. Step 2: Convert to fraction form
    162,820.71/243,810.45 = 112,375.44/x
  3. Step 3: Cross multiply
    162,820.71x = 243,810.45 × 112,375.44
  4. Step 4: Simplify right side
    162,820.71x = 27,398,306,595.35
  5. Step 5: Solve for x
    x = 27,398,306,595.35/162,820.71
  6. Step 6: Final answer
    x = 168,272.86

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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.