Home / 105,979.66-159,348.30-97,761.40

Finding the Fourth Proportional to 105,979.66, 159,348.30 and 97,761.40

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Solution

The fourth proportional to 105,979.66, 159,348.30 and 97,761.40 is: 146,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,979.66 : 159,348.30 = 97,761.40 : x
  2. Step 2: Convert to fraction form
    105,979.66/159,348.30 = 97,761.40/x
  3. Step 3: Cross multiply
    105,979.66x = 159,348.30 × 97,761.40
  4. Step 4: Simplify right side
    105,979.66x = 15,578,112,895.62
  5. Step 5: Solve for x
    x = 15,578,112,895.62/105,979.66
  6. Step 6: Final answer
    x = 146,991.53

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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.