Home / 166,139.17-249,121.18-72,535.57

Finding the Fourth Proportional to 166,139.17, 249,121.18 and 72,535.57

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Solution

The fourth proportional to 166,139.17, 249,121.18 and 72,535.57 is: 108,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,139.17 : 249,121.18 = 72,535.57 : x
  2. Step 2: Convert to fraction form
    166,139.17/249,121.18 = 72,535.57/x
  3. Step 3: Cross multiply
    166,139.17x = 249,121.18 × 72,535.57
  4. Step 4: Simplify right side
    166,139.17x = 18,070,146,790.37
  5. Step 5: Solve for x
    x = 18,070,146,790.37/166,139.17
  6. Step 6: Final answer
    x = 108,765.12

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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.