Home / 106,517.14-159,623.48-78,215.13

Finding the Fourth Proportional to 106,517.14, 159,623.48 and 78,215.13

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Solution

The fourth proportional to 106,517.14, 159,623.48 and 78,215.13 is: 117,210.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,517.14 : 159,623.48 = 78,215.13 : x
  2. Step 2: Convert to fraction form
    106,517.14/159,623.48 = 78,215.13/x
  3. Step 3: Cross multiply
    106,517.14x = 159,623.48 × 78,215.13
  4. Step 4: Simplify right side
    106,517.14x = 12,484,971,434.79
  5. Step 5: Solve for x
    x = 12,484,971,434.79/106,517.14
  6. Step 6: Final answer
    x = 117,210.92

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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.