Home / 106,263.43-159,001.45-78,204.22

Finding the Fourth Proportional to 106,263.43, 159,001.45 and 78,204.22

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Solution

The fourth proportional to 106,263.43, 159,001.45 and 78,204.22 is: 117,016.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,263.43 : 159,001.45 = 78,204.22 : x
  2. Step 2: Convert to fraction form
    106,263.43/159,001.45 = 78,204.22/x
  3. Step 3: Cross multiply
    106,263.43x = 159,001.45 × 78,204.22
  4. Step 4: Simplify right side
    106,263.43x = 12,434,583,783.10
  5. Step 5: Solve for x
    x = 12,434,583,783.10/106,263.43
  6. Step 6: Final answer
    x = 117,016.59

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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.