Home / 148,805.07-205,352.51-80,822.70

Finding the Fourth Proportional to 148,805.07, 205,352.51 and 80,822.70

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Solution

The fourth proportional to 148,805.07, 205,352.51 and 80,822.70 is: 111,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,805.07 : 205,352.51 = 80,822.70 : x
  2. Step 2: Convert to fraction form
    148,805.07/205,352.51 = 80,822.70/x
  3. Step 3: Cross multiply
    148,805.07x = 205,352.51 × 80,822.70
  4. Step 4: Simplify right side
    148,805.07x = 16,597,143,905.86
  5. Step 5: Solve for x
    x = 16,597,143,905.86/148,805.07
  6. Step 6: Final answer
    x = 111,536.15

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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.