Home / 166,358.64-249,302.07-128,743.61

Finding the Fourth Proportional to 166,358.64, 249,302.07 and 128,743.61

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Solution

The fourth proportional to 166,358.64, 249,302.07 and 128,743.61 is: 192,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,358.64 : 249,302.07 = 128,743.61 : x
  2. Step 2: Convert to fraction form
    166,358.64/249,302.07 = 128,743.61/x
  3. Step 3: Cross multiply
    166,358.64x = 249,302.07 × 128,743.61
  4. Step 4: Simplify right side
    166,358.64x = 32,096,049,095.53
  5. Step 5: Solve for x
    x = 32,096,049,095.53/166,358.64
  6. Step 6: Final answer
    x = 192,932.87

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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.