Home / 166,279.20-249,451.20-66,422.40

Finding the Fourth Proportional to 166,279.20, 249,451.20 and 66,422.40

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Solution

The fourth proportional to 166,279.20, 249,451.20 and 66,422.40 is: 99,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,279.20 : 249,451.20 = 66,422.40 : x
  2. Step 2: Convert to fraction form
    166,279.20/249,451.20 = 66,422.40/x
  3. Step 3: Cross multiply
    166,279.20x = 249,451.20 × 66,422.40
  4. Step 4: Simplify right side
    166,279.20x = 16,569,147,386.88
  5. Step 5: Solve for x
    x = 16,569,147,386.88/166,279.20
  6. Step 6: Final answer
    x = 99,646.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.