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Finding the Fourth Proportional to 166,755.88, 249,871.73 and 128,897.83

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Solution

The fourth proportional to 166,755.88, 249,871.73 and 128,897.83 is: 193,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,755.88 : 249,871.73 = 128,897.83 : x
  2. Step 2: Convert to fraction form
    166,755.88/249,871.73 = 128,897.83/x
  3. Step 3: Cross multiply
    166,755.88x = 249,871.73 × 128,897.83
  4. Step 4: Simplify right side
    166,755.88x = 32,207,923,443.20
  5. Step 5: Solve for x
    x = 32,207,923,443.20/166,755.88
  6. Step 6: Final answer
    x = 193,144.15

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1.5x scale

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.