Home / 180,959.20-249,711.93-100,386.52

Finding the Fourth Proportional to 180,959.20, 249,711.93 and 100,386.52

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Solution

The fourth proportional to 180,959.20, 249,711.93 and 100,386.52 is: 138,526.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,959.20 : 249,711.93 = 100,386.52 : x
  2. Step 2: Convert to fraction form
    180,959.20/249,711.93 = 100,386.52/x
  3. Step 3: Cross multiply
    180,959.20x = 249,711.93 × 100,386.52
  4. Step 4: Simplify right side
    180,959.20x = 25,067,712,435.53
  5. Step 5: Solve for x
    x = 25,067,712,435.53/180,959.20
  6. Step 6: Final answer
    x = 138,526.88

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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.