Home / 148,615.40-205,049.58-88,135.76

Finding the Fourth Proportional to 148,615.40, 205,049.58 and 88,135.76

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Solution

The fourth proportional to 148,615.40, 205,049.58 and 88,135.76 is: 121,603.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,615.40 : 205,049.58 = 88,135.76 : x
  2. Step 2: Convert to fraction form
    148,615.40/205,049.58 = 88,135.76/x
  3. Step 3: Cross multiply
    148,615.40x = 205,049.58 × 88,135.76
  4. Step 4: Simplify right side
    148,615.40x = 18,072,200,570.98
  5. Step 5: Solve for x
    x = 18,072,200,570.98/148,615.40
  6. Step 6: Final answer
    x = 121,603.82

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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.