Home / 129,849.60-194,725.80-45,577.20

Finding the Fourth Proportional to 129,849.60, 194,725.80 and 45,577.20

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Solution

The fourth proportional to 129,849.60, 194,725.80 and 45,577.20 is: 68,348.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,849.60 : 194,725.80 = 45,577.20 : x
  2. Step 2: Convert to fraction form
    129,849.60/194,725.80 = 45,577.20/x
  3. Step 3: Cross multiply
    129,849.60x = 194,725.80 × 45,577.20
  4. Step 4: Simplify right side
    129,849.60x = 8,875,056,731.76
  5. Step 5: Solve for x
    x = 8,875,056,731.76/129,849.60
  6. Step 6: Final answer
    x = 68,348.74

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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.