Home / 147,145.20-220,199.40-102,562.80

Finding the Fourth Proportional to 147,145.20, 220,199.40 and 102,562.80

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Solution

The fourth proportional to 147,145.20, 220,199.40 and 102,562.80 is: 153,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,145.20 : 220,199.40 = 102,562.80 : x
  2. Step 2: Convert to fraction form
    147,145.20/220,199.40 = 102,562.80/x
  3. Step 3: Cross multiply
    147,145.20x = 220,199.40 × 102,562.80
  4. Step 4: Simplify right side
    147,145.20x = 22,584,267,022.32
  5. Step 5: Solve for x
    x = 22,584,267,022.32/147,145.20
  6. Step 6: Final answer
    x = 153,482.87

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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.