Home / 166,245.12-249,367.68-128,881.44

Finding the Fourth Proportional to 166,245.12, 249,367.68 and 128,881.44

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Solution

The fourth proportional to 166,245.12, 249,367.68 and 128,881.44 is: 193,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,245.12 : 249,367.68 = 128,881.44 : x
  2. Step 2: Convert to fraction form
    166,245.12/249,367.68 = 128,881.44/x
  3. Step 3: Cross multiply
    166,245.12x = 249,367.68 × 128,881.44
  4. Step 4: Simplify right side
    166,245.12x = 32,138,865,687.86
  5. Step 5: Solve for x
    x = 32,138,865,687.86/166,245.12
  6. Step 6: Final answer
    x = 193,322.16

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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.