Home / 162,772.80-243,872.16-142,556.76

Finding the Fourth Proportional to 162,772.80, 243,872.16 and 142,556.76

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Solution

The fourth proportional to 162,772.80, 243,872.16 and 142,556.76 is: 213,583.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,772.80 : 243,872.16 = 142,556.76 : x
  2. Step 2: Convert to fraction form
    162,772.80/243,872.16 = 142,556.76/x
  3. Step 3: Cross multiply
    162,772.80x = 243,872.16 × 142,556.76
  4. Step 4: Simplify right side
    162,772.80x = 34,765,624,983.80
  5. Step 5: Solve for x
    x = 34,765,624,983.80/162,772.80
  6. Step 6: Final answer
    x = 213,583.75

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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.