Home / 148,849.29-205,412.29-80,865.70

Finding the Fourth Proportional to 148,849.29, 205,412.29 and 80,865.70

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Solution

The fourth proportional to 148,849.29, 205,412.29 and 80,865.70 is: 111,594.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,849.29 : 205,412.29 = 80,865.70 : x
  2. Step 2: Convert to fraction form
    148,849.29/205,412.29 = 80,865.70/x
  3. Step 3: Cross multiply
    148,849.29x = 205,412.29 × 80,865.70
  4. Step 4: Simplify right side
    148,849.29x = 16,610,807,903.76
  5. Step 5: Solve for x
    x = 16,610,807,903.76/148,849.29
  6. Step 6: Final answer
    x = 111,594.81

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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.