Home / 105,011.54-157,517.88-26,125.78

Finding the Fourth Proportional to 105,011.54, 157,517.88 and 26,125.78

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Solution

The fourth proportional to 105,011.54, 157,517.88 and 26,125.78 is: 39,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,011.54 : 157,517.88 = 26,125.78 : x
  2. Step 2: Convert to fraction form
    105,011.54/157,517.88 = 26,125.78/x
  3. Step 3: Cross multiply
    105,011.54x = 157,517.88 × 26,125.78
  4. Step 4: Simplify right side
    105,011.54x = 4,115,277,478.95
  5. Step 5: Solve for x
    x = 4,115,277,478.95/105,011.54
  6. Step 6: Final answer
    x = 39,188.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.