Home / 106,263.93-159,002.20-78,204.72

Finding the Fourth Proportional to 106,263.93, 159,002.20 and 78,204.72

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Solution

The fourth proportional to 106,263.93, 159,002.20 and 78,204.72 is: 117,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,263.93 : 159,002.20 = 78,204.72 : x
  2. Step 2: Convert to fraction form
    106,263.93/159,002.20 = 78,204.72/x
  3. Step 3: Cross multiply
    106,263.93x = 159,002.20 × 78,204.72
  4. Step 4: Simplify right side
    106,263.93x = 12,434,722,139.36
  5. Step 5: Solve for x
    x = 12,434,722,139.36/106,263.93
  6. Step 6: Final answer
    x = 117,017.34

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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.