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Finding the Fourth Proportional to 129,763.70, 194,621.55 and 36,250.10

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Solution

The fourth proportional to 129,763.70, 194,621.55 and 36,250.10 is: 54,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,763.70 : 194,621.55 = 36,250.10 : x
  2. Step 2: Convert to fraction form
    129,763.70/194,621.55 = 36,250.10/x
  3. Step 3: Cross multiply
    129,763.70x = 194,621.55 × 36,250.10
  4. Step 4: Simplify right side
    129,763.70x = 7,055,050,649.66
  5. Step 5: Solve for x
    x = 7,055,050,649.66/129,763.70
  6. Step 6: Final answer
    x = 54,368.45

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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.