Home / 109,518.75-151,134.33-61,787.46

Finding the Fourth Proportional to 109,518.75, 151,134.33 and 61,787.46

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Solution

The fourth proportional to 109,518.75, 151,134.33 and 61,787.46 is: 85,265.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,518.75 : 151,134.33 = 61,787.46 : x
  2. Step 2: Convert to fraction form
    109,518.75/151,134.33 = 61,787.46/x
  3. Step 3: Cross multiply
    109,518.75x = 151,134.33 × 61,787.46
  4. Step 4: Simplify right side
    109,518.75x = 9,338,206,369.50
  5. Step 5: Solve for x
    x = 9,338,206,369.50/109,518.75
  6. Step 6: Final answer
    x = 85,265.82

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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.