Home / 219,371.76-329,057.68-79,130.36

Finding the Fourth Proportional to 219,371.76, 329,057.68 and 79,130.36

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Solution

The fourth proportional to 219,371.76, 329,057.68 and 79,130.36 is: 118,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,371.76 : 329,057.68 = 79,130.36 : x
  2. Step 2: Convert to fraction form
    219,371.76/329,057.68 = 79,130.36/x
  3. Step 3: Cross multiply
    219,371.76x = 329,057.68 × 79,130.36
  4. Step 4: Simplify right side
    219,371.76x = 26,038,452,679.16
  5. Step 5: Solve for x
    x = 26,038,452,679.16/219,371.76
  6. Step 6: Final answer
    x = 118,695.55

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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.