Home / 146,209.12-219,324.48-128,799.52

Finding the Fourth Proportional to 146,209.12, 219,324.48 and 128,799.52

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Solution

The fourth proportional to 146,209.12, 219,324.48 and 128,799.52 is: 193,208.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,209.12 : 219,324.48 = 128,799.52 : x
  2. Step 2: Convert to fraction form
    146,209.12/219,324.48 = 128,799.52/x
  3. Step 3: Cross multiply
    146,209.12x = 219,324.48 × 128,799.52
  4. Step 4: Simplify right side
    146,209.12x = 28,248,887,748.25
  5. Step 5: Solve for x
    x = 28,248,887,748.25/146,209.12
  6. Step 6: Final answer
    x = 193,208.79

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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.