Home / 105,234.87-157,914.59-38,721.71

Finding the Fourth Proportional to 105,234.87, 157,914.59 and 38,721.71

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Solution

The fourth proportional to 105,234.87, 157,914.59 and 38,721.71 is: 58,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,234.87 : 157,914.59 = 38,721.71 : x
  2. Step 2: Convert to fraction form
    105,234.87/157,914.59 = 38,721.71/x
  3. Step 3: Cross multiply
    105,234.87x = 157,914.59 × 38,721.71
  4. Step 4: Simplify right side
    105,234.87x = 6,114,723,009.04
  5. Step 5: Solve for x
    x = 6,114,723,009.04/105,234.87
  6. Step 6: Final answer
    x = 58,105.48

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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.