Home / 147,516.60-221,346.90-68,590.20

Finding the Fourth Proportional to 147,516.60, 221,346.90 and 68,590.20

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Solution

The fourth proportional to 147,516.60, 221,346.90 and 68,590.20 is: 102,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,516.60 : 221,346.90 = 68,590.20 : x
  2. Step 2: Convert to fraction form
    147,516.60/221,346.90 = 68,590.20/x
  3. Step 3: Cross multiply
    147,516.60x = 221,346.90 × 68,590.20
  4. Step 4: Simplify right side
    147,516.60x = 15,182,228,140.38
  5. Step 5: Solve for x
    x = 15,182,228,140.38/147,516.60
  6. Step 6: Final answer
    x = 102,918.78

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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.