Home / 180,964.43-249,710.65-100,371.76

Finding the Fourth Proportional to 180,964.43, 249,710.65 and 100,371.76

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Solution

The fourth proportional to 180,964.43, 249,710.65 and 100,371.76 is: 138,501.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,964.43 : 249,710.65 = 100,371.76 : x
  2. Step 2: Convert to fraction form
    180,964.43/249,710.65 = 100,371.76/x
  3. Step 3: Cross multiply
    180,964.43x = 249,710.65 × 100,371.76
  4. Step 4: Simplify right side
    180,964.43x = 25,063,896,556.04
  5. Step 5: Solve for x
    x = 25,063,896,556.04/180,964.43
  6. Step 6: Final answer
    x = 138,501.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.