Home / 100,377.12-150,434.46-75,219.42

Finding the Fourth Proportional to 100,377.12, 150,434.46 and 75,219.42

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Solution

The fourth proportional to 100,377.12, 150,434.46 and 75,219.42 is: 112,730.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,377.12 : 150,434.46 = 75,219.42 : x
  2. Step 2: Convert to fraction form
    100,377.12/150,434.46 = 75,219.42/x
  3. Step 3: Cross multiply
    100,377.12x = 150,434.46 × 75,219.42
  4. Step 4: Simplify right side
    100,377.12x = 11,315,592,829.21
  5. Step 5: Solve for x
    x = 11,315,592,829.21/100,377.12
  6. Step 6: Final answer
    x = 112,730.80

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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.