Home / 180,827.10-249,556.20-100,279.90

Finding the Fourth Proportional to 180,827.10, 249,556.20 and 100,279.90

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Solution

The fourth proportional to 180,827.10, 249,556.20 and 100,279.90 is: 138,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,827.10 : 249,556.20 = 100,279.90 : x
  2. Step 2: Convert to fraction form
    180,827.10/249,556.20 = 100,279.90/x
  3. Step 3: Cross multiply
    180,827.10x = 249,556.20 × 100,279.90
  4. Step 4: Simplify right side
    180,827.10x = 25,025,470,780.38
  5. Step 5: Solve for x
    x = 25,025,470,780.38/180,827.10
  6. Step 6: Final answer
    x = 138,394.47

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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.