Home / 149,115.04-205,766.16-87,851.44

Finding the Fourth Proportional to 149,115.04, 205,766.16 and 87,851.44

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Solution

The fourth proportional to 149,115.04, 205,766.16 and 87,851.44 is: 121,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,115.04 : 205,766.16 = 87,851.44 : x
  2. Step 2: Convert to fraction form
    149,115.04/205,766.16 = 87,851.44/x
  3. Step 3: Cross multiply
    149,115.04x = 205,766.16 × 87,851.44
  4. Step 4: Simplify right side
    149,115.04x = 18,076,853,459.27
  5. Step 5: Solve for x
    x = 18,076,853,459.27/149,115.04
  6. Step 6: Final answer
    x = 121,227.57

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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.