Home / 105,234.75-157,914.40-38,721.59

Finding the Fourth Proportional to 105,234.75, 157,914.40 and 38,721.59

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Solution

The fourth proportional to 105,234.75, 157,914.40 and 38,721.59 is: 58,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,234.75 : 157,914.40 = 38,721.59 : x
  2. Step 2: Convert to fraction form
    105,234.75/157,914.40 = 38,721.59/x
  3. Step 3: Cross multiply
    105,234.75x = 157,914.40 × 38,721.59
  4. Step 4: Simplify right side
    105,234.75x = 6,114,695,862.32
  5. Step 5: Solve for x
    x = 6,114,695,862.32/105,234.75
  6. Step 6: Final answer
    x = 58,105.29

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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.