Home / 95,430.20-143,145.30-53,439.80

Finding the Fourth Proportional to 95,430.20, 143,145.30 and 53,439.80

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Solution

The fourth proportional to 95,430.20, 143,145.30 and 53,439.80 is: 80,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,430.20 : 143,145.30 = 53,439.80 : x
  2. Step 2: Convert to fraction form
    95,430.20/143,145.30 = 53,439.80/x
  3. Step 3: Cross multiply
    95,430.20x = 143,145.30 × 53,439.80
  4. Step 4: Simplify right side
    95,430.20x = 7,649,656,202.94
  5. Step 5: Solve for x
    x = 7,649,656,202.94/95,430.20
  6. Step 6: Final answer
    x = 80,159.70

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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.