Home / 149,767.04-206,670.81-81,770.91

Finding the Fourth Proportional to 149,767.04, 206,670.81 and 81,770.91

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Solution

The fourth proportional to 149,767.04, 206,670.81 and 81,770.91 is: 112,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,767.04 : 206,670.81 = 81,770.91 : x
  2. Step 2: Convert to fraction form
    149,767.04/206,670.81 = 81,770.91/x
  3. Step 3: Cross multiply
    149,767.04x = 206,670.81 × 81,770.91
  4. Step 4: Simplify right side
    149,767.04x = 16,899,660,510.78
  5. Step 5: Solve for x
    x = 16,899,660,510.78/149,767.04
  6. Step 6: Final answer
    x = 112,839.65

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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.