Home / 149,841.30-206,905.41-99,767.70

Finding the Fourth Proportional to 149,841.30, 206,905.41 and 99,767.70

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Solution

The fourth proportional to 149,841.30, 206,905.41 and 99,767.70 is: 137,762.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,841.30 : 206,905.41 = 99,767.70 : x
  2. Step 2: Convert to fraction form
    149,841.30/206,905.41 = 99,767.70/x
  3. Step 3: Cross multiply
    149,841.30x = 206,905.41 × 99,767.70
  4. Step 4: Simplify right side
    149,841.30x = 20,642,476,873.26
  5. Step 5: Solve for x
    x = 20,642,476,873.26/149,841.30
  6. Step 6: Final answer
    x = 137,762.26

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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.