Home / 180,932.52-249,690.87-100,357.41

Finding the Fourth Proportional to 180,932.52, 249,690.87 and 100,357.41

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Solution

The fourth proportional to 180,932.52, 249,690.87 and 100,357.41 is: 138,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,932.52 : 249,690.87 = 100,357.41 : x
  2. Step 2: Convert to fraction form
    180,932.52/249,690.87 = 100,357.41/x
  3. Step 3: Cross multiply
    180,932.52x = 249,690.87 × 100,357.41
  4. Step 4: Simplify right side
    180,932.52x = 25,058,329,013.85
  5. Step 5: Solve for x
    x = 25,058,329,013.85/180,932.52
  6. Step 6: Final answer
    x = 138,495.44

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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.