Home / 149,746.89-206,649.12-81,763.65

Finding the Fourth Proportional to 149,746.89, 206,649.12 and 81,763.65

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Solution

The fourth proportional to 149,746.89, 206,649.12 and 81,763.65 is: 112,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,746.89 : 206,649.12 = 81,763.65 : x
  2. Step 2: Convert to fraction form
    149,746.89/206,649.12 = 81,763.65/x
  3. Step 3: Cross multiply
    149,746.89x = 206,649.12 × 81,763.65
  4. Step 4: Simplify right side
    149,746.89x = 16,896,386,320.49
  5. Step 5: Solve for x
    x = 16,896,386,320.49/149,746.89
  6. Step 6: Final answer
    x = 112,832.97

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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.