Home / 149,247.65-205,959.83-81,263.85

Finding the Fourth Proportional to 149,247.65, 205,959.83 and 81,263.85

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Solution

The fourth proportional to 149,247.65, 205,959.83 and 81,263.85 is: 112,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,247.65 : 205,959.83 = 81,263.85 : x
  2. Step 2: Convert to fraction form
    149,247.65/205,959.83 = 81,263.85/x
  3. Step 3: Cross multiply
    149,247.65x = 205,959.83 × 81,263.85
  4. Step 4: Simplify right side
    149,247.65x = 16,737,087,295.03
  5. Step 5: Solve for x
    x = 16,737,087,295.03/149,247.65
  6. Step 6: Final answer
    x = 112,143.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.