Home / 138,736.80-207,983.70-94,219.20

Finding the Fourth Proportional to 138,736.80, 207,983.70 and 94,219.20

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Solution

The fourth proportional to 138,736.80, 207,983.70 and 94,219.20 is: 141,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,736.80 : 207,983.70 = 94,219.20 : x
  2. Step 2: Convert to fraction form
    138,736.80/207,983.70 = 94,219.20/x
  3. Step 3: Cross multiply
    138,736.80x = 207,983.70 × 94,219.20
  4. Step 4: Simplify right side
    138,736.80x = 19,596,057,827.04
  5. Step 5: Solve for x
    x = 19,596,057,827.04/138,736.80
  6. Step 6: Final answer
    x = 141,246.29

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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.