Home / 148,717.19-205,208.07-85,042.69

Finding the Fourth Proportional to 148,717.19, 205,208.07 and 85,042.69

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Solution

The fourth proportional to 148,717.19, 205,208.07 and 85,042.69 is: 117,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,717.19 : 205,208.07 = 85,042.69 : x
  2. Step 2: Convert to fraction form
    148,717.19/205,208.07 = 85,042.69/x
  3. Step 3: Cross multiply
    148,717.19x = 205,208.07 × 85,042.69
  4. Step 4: Simplify right side
    148,717.19x = 17,451,445,928.94
  5. Step 5: Solve for x
    x = 17,451,445,928.94/148,717.19
  6. Step 6: Final answer
    x = 117,346.53

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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.