Home / 192,001.70-288,002.55-129,332.90

Finding the Fourth Proportional to 192,001.70, 288,002.55 and 129,332.90

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Solution

The fourth proportional to 192,001.70, 288,002.55 and 129,332.90 is: 193,999.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,001.70 : 288,002.55 = 129,332.90 : x
  2. Step 2: Convert to fraction form
    192,001.70/288,002.55 = 129,332.90/x
  3. Step 3: Cross multiply
    192,001.70x = 288,002.55 × 129,332.90
  4. Step 4: Simplify right side
    192,001.70x = 37,248,204,998.90
  5. Step 5: Solve for x
    x = 37,248,204,998.90/192,001.70
  6. Step 6: Final answer
    x = 193,999.35

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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.