Home / 149,882.94-206,844.48-86,220.72

Finding the Fourth Proportional to 149,882.94, 206,844.48 and 86,220.72

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Solution

The fourth proportional to 149,882.94, 206,844.48 and 86,220.72 is: 118,988.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,882.94 : 206,844.48 = 86,220.72 : x
  2. Step 2: Convert to fraction form
    149,882.94/206,844.48 = 86,220.72/x
  3. Step 3: Cross multiply
    149,882.94x = 206,844.48 × 86,220.72
  4. Step 4: Simplify right side
    149,882.94x = 17,834,279,993.63
  5. Step 5: Solve for x
    x = 17,834,279,993.63/149,882.94
  6. Step 6: Final answer
    x = 118,988.06

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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.