Home / 148,839.50-205,400.94-85,212.38

Finding the Fourth Proportional to 148,839.50, 205,400.94 and 85,212.38

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Solution

The fourth proportional to 148,839.50, 205,400.94 and 85,212.38 is: 117,594.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,839.50 : 205,400.94 = 85,212.38 : x
  2. Step 2: Convert to fraction form
    148,839.50/205,400.94 = 85,212.38/x
  3. Step 3: Cross multiply
    148,839.50x = 205,400.94 × 85,212.38
  4. Step 4: Simplify right side
    148,839.50x = 17,502,702,951.64
  5. Step 5: Solve for x
    x = 17,502,702,951.64/148,839.50
  6. Step 6: Final answer
    x = 117,594.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.