Home / 166,657.20-249,767.10-66,735.60

Finding the Fourth Proportional to 166,657.20, 249,767.10 and 66,735.60

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Solution

The fourth proportional to 166,657.20, 249,767.10 and 66,735.60 is: 100,015.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,657.20 : 249,767.10 = 66,735.60 : x
  2. Step 2: Convert to fraction form
    166,657.20/249,767.10 = 66,735.60/x
  3. Step 3: Cross multiply
    166,657.20x = 249,767.10 × 66,735.60
  4. Step 4: Simplify right side
    166,657.20x = 16,668,357,278.76
  5. Step 5: Solve for x
    x = 16,668,357,278.76/166,657.20
  6. Step 6: Final answer
    x = 100,015.82

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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.