Home / 129,931.80-194,897.70-73,750.20

Finding the Fourth Proportional to 129,931.80, 194,897.70 and 73,750.20

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Solution

The fourth proportional to 129,931.80, 194,897.70 and 73,750.20 is: 110,625.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931.80 : 194,897.70 = 73,750.20 : x
  2. Step 2: Convert to fraction form
    129,931.80/194,897.70 = 73,750.20/x
  3. Step 3: Cross multiply
    129,931.80x = 194,897.70 × 73,750.20
  4. Step 4: Simplify right side
    129,931.80x = 14,373,744,354.54
  5. Step 5: Solve for x
    x = 14,373,744,354.54/129,931.80
  6. Step 6: Final answer
    x = 110,625.30

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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.