Home / 166,515.54-249,707.57-66,657.12

Finding the Fourth Proportional to 166,515.54, 249,707.57 and 66,657.12

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Solution

The fourth proportional to 166,515.54, 249,707.57 and 66,657.12 is: 99,959.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,515.54 : 249,707.57 = 66,657.12 : x
  2. Step 2: Convert to fraction form
    166,515.54/249,707.57 = 66,657.12/x
  3. Step 3: Cross multiply
    166,515.54x = 249,707.57 × 66,657.12
  4. Step 4: Simplify right side
    166,515.54x = 16,644,787,125.11
  5. Step 5: Solve for x
    x = 16,644,787,125.11/166,515.54
  6. Step 6: Final answer
    x = 99,959.36

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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.