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Finding the Fourth Proportional to 105,295.38, 158,016.87 and 60,861

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Solution

The fourth proportional to 105,295.38, 158,016.87 and 60,861 is: 91,334.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,295.38 : 158,016.87 = 60,861 : x
  2. Step 2: Convert to fraction form
    105,295.38/158,016.87 = 60,861/x
  3. Step 3: Cross multiply
    105,295.38x = 158,016.87 × 60,861
  4. Step 4: Simplify right side
    105,295.38x = 9,617,064,725.07
  5. Step 5: Solve for x
    x = 9,617,064,725.07/105,295.38
  6. Step 6: Final answer
    x = 91,334.16

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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.