Home / 146,253.20-219,328.60-76,109.20

Finding the Fourth Proportional to 146,253.20, 219,328.60 and 76,109.20

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Solution

The fourth proportional to 146,253.20, 219,328.60 and 76,109.20 is: 114,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,253.20 : 219,328.60 = 76,109.20 : x
  2. Step 2: Convert to fraction form
    146,253.20/219,328.60 = 76,109.20/x
  3. Step 3: Cross multiply
    146,253.20x = 219,328.60 × 76,109.20
  4. Step 4: Simplify right side
    146,253.20x = 16,692,924,283.12
  5. Step 5: Solve for x
    x = 16,692,924,283.12/146,253.20
  6. Step 6: Final answer
    x = 114,137.16

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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.