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Finding the Fourth Proportional to 203,641.72, 281,027.12 and 112,998.04

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Solution

The fourth proportional to 203,641.72, 281,027.12 and 112,998.04 is: 155,938.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,641.72 : 281,027.12 = 112,998.04 : x
  2. Step 2: Convert to fraction form
    203,641.72/281,027.12 = 112,998.04/x
  3. Step 3: Cross multiply
    203,641.72x = 281,027.12 × 112,998.04
  4. Step 4: Simplify right side
    203,641.72x = 31,755,513,746.84
  5. Step 5: Solve for x
    x = 31,755,513,746.84/203,641.72
  6. Step 6: Final answer
    x = 155,938.15

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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.