Home / 95,428.20-143,142.30-53,437.80

Finding the Fourth Proportional to 95,428.20, 143,142.30 and 53,437.80

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Solution

The fourth proportional to 95,428.20, 143,142.30 and 53,437.80 is: 80,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,428.20 : 143,142.30 = 53,437.80 : x
  2. Step 2: Convert to fraction form
    95,428.20/143,142.30 = 53,437.80/x
  3. Step 3: Cross multiply
    95,428.20x = 143,142.30 × 53,437.80
  4. Step 4: Simplify right side
    95,428.20x = 7,649,209,598.94
  5. Step 5: Solve for x
    x = 7,649,209,598.94/95,428.20
  6. Step 6: Final answer
    x = 80,156.70

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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.