Home / 149,350.73-206,109.02-81,373.10

Finding the Fourth Proportional to 149,350.73, 206,109.02 and 81,373.10

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Solution

The fourth proportional to 149,350.73, 206,109.02 and 81,373.10 is: 112,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,350.73 : 206,109.02 = 81,373.10 : x
  2. Step 2: Convert to fraction form
    149,350.73/206,109.02 = 81,373.10/x
  3. Step 3: Cross multiply
    149,350.73x = 206,109.02 × 81,373.10
  4. Step 4: Simplify right side
    149,350.73x = 16,771,729,068.25
  5. Step 5: Solve for x
    x = 16,771,729,068.25/149,350.73
  6. Step 6: Final answer
    x = 112,297.61

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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.