Home / 133,289.10-199,933.65-122,402.70

Finding the Fourth Proportional to 133,289.10, 199,933.65 and 122,402.70

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Solution

The fourth proportional to 133,289.10, 199,933.65 and 122,402.70 is: 183,604.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,289.10 : 199,933.65 = 122,402.70 : x
  2. Step 2: Convert to fraction form
    133,289.10/199,933.65 = 122,402.70/x
  3. Step 3: Cross multiply
    133,289.10x = 199,933.65 × 122,402.70
  4. Step 4: Simplify right side
    133,289.10x = 24,472,418,580.86
  5. Step 5: Solve for x
    x = 24,472,418,580.86/133,289.10
  6. Step 6: Final answer
    x = 183,604.05

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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.