Home / 166,191.78-249,288.08-66,360.10

Finding the Fourth Proportional to 166,191.78, 249,288.08 and 66,360.10

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Solution

The fourth proportional to 166,191.78, 249,288.08 and 66,360.10 is: 99,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,191.78 : 249,288.08 = 66,360.10 : x
  2. Step 2: Convert to fraction form
    166,191.78/249,288.08 = 66,360.10/x
  3. Step 3: Cross multiply
    166,191.78x = 249,288.08 × 66,360.10
  4. Step 4: Simplify right side
    166,191.78x = 16,542,781,917.61
  5. Step 5: Solve for x
    x = 16,542,781,917.61/166,191.78
  6. Step 6: Final answer
    x = 99,540.31

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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.