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Finding the Fourth Proportional to 113,874.84, 157,221.18 and 101,917.44

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Solution

The fourth proportional to 113,874.84, 157,221.18 and 101,917.44 is: 140,712.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,874.84 : 157,221.18 = 101,917.44 : x
  2. Step 2: Convert to fraction form
    113,874.84/157,221.18 = 101,917.44/x
  3. Step 3: Cross multiply
    113,874.84x = 157,221.18 × 101,917.44
  4. Step 4: Simplify right side
    113,874.84x = 16,023,580,179.38
  5. Step 5: Solve for x
    x = 16,023,580,179.38/113,874.84
  6. Step 6: Final answer
    x = 140,712.21

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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.