Home / 105,234.34-157,913.79-38,721.18

Finding the Fourth Proportional to 105,234.34, 157,913.79 and 38,721.18

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Solution

The fourth proportional to 105,234.34, 157,913.79 and 38,721.18 is: 58,104.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,234.34 : 157,913.79 = 38,721.18 : x
  2. Step 2: Convert to fraction form
    105,234.34/157,913.79 = 38,721.18/x
  3. Step 3: Cross multiply
    105,234.34x = 157,913.79 × 38,721.18
  4. Step 4: Simplify right side
    105,234.34x = 6,114,607,664.55
  5. Step 5: Solve for x
    x = 6,114,607,664.55/105,234.34
  6. Step 6: Final answer
    x = 58,104.68

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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.