Home / 144,834.30-217,251.45-138,929.40

Finding the Fourth Proportional to 144,834.30, 217,251.45 and 138,929.40

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Solution

The fourth proportional to 144,834.30, 217,251.45 and 138,929.40 is: 208,394.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,834.30 : 217,251.45 = 138,929.40 : x
  2. Step 2: Convert to fraction form
    144,834.30/217,251.45 = 138,929.40/x
  3. Step 3: Cross multiply
    144,834.30x = 217,251.45 × 138,929.40
  4. Step 4: Simplify right side
    144,834.30x = 30,182,613,597.63
  5. Step 5: Solve for x
    x = 30,182,613,597.63/144,834.30
  6. Step 6: Final answer
    x = 208,394.10

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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.