Home / 180,801.24-249,488.90-100,221.90

Finding the Fourth Proportional to 180,801.24, 249,488.90 and 100,221.90

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Solution

The fourth proportional to 180,801.24, 249,488.90 and 100,221.90 is: 138,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,801.24 : 249,488.90 = 100,221.90 : x
  2. Step 2: Convert to fraction form
    180,801.24/249,488.90 = 100,221.90/x
  3. Step 3: Cross multiply
    180,801.24x = 249,488.90 × 100,221.90
  4. Step 4: Simplify right side
    180,801.24x = 25,004,251,085.80
  5. Step 5: Solve for x
    x = 25,004,251,085.80/180,801.24
  6. Step 6: Final answer
    x = 138,296.90

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1.5x scale

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.