Home / 219,988.17-329,983.47-79,743.15

Finding the Fourth Proportional to 219,988.17, 329,983.47 and 79,743.15

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Solution

The fourth proportional to 219,988.17, 329,983.47 and 79,743.15 is: 119,615.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,988.17 : 329,983.47 = 79,743.15 : x
  2. Step 2: Convert to fraction form
    219,988.17/329,983.47 = 79,743.15/x
  3. Step 3: Cross multiply
    219,988.17x = 329,983.47 × 79,743.15
  4. Step 4: Simplify right side
    219,988.17x = 26,313,921,345.73
  5. Step 5: Solve for x
    x = 26,313,921,345.73/219,988.17
  6. Step 6: Final answer
    x = 119,615.17

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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.