Home / 133,886.32-200,854.08-109,143.20

Finding the Fourth Proportional to 133,886.32, 200,854.08 and 109,143.20

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Solution

The fourth proportional to 133,886.32, 200,854.08 and 109,143.20 is: 163,734.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,886.32 : 200,854.08 = 109,143.20 : x
  2. Step 2: Convert to fraction form
    133,886.32/200,854.08 = 109,143.20/x
  3. Step 3: Cross multiply
    133,886.32x = 200,854.08 × 109,143.20
  4. Step 4: Simplify right side
    133,886.32x = 21,921,857,024.26
  5. Step 5: Solve for x
    x = 21,921,857,024.26/133,886.32
  6. Step 6: Final answer
    x = 163,734.85

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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.