Home / 135,943.25-187,669.85-84,984.30

Finding the Fourth Proportional to 135,943.25, 187,669.85 and 84,984.30

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Solution

The fourth proportional to 135,943.25, 187,669.85 and 84,984.30 is: 117,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,943.25 : 187,669.85 = 84,984.30 : x
  2. Step 2: Convert to fraction form
    135,943.25/187,669.85 = 84,984.30/x
  3. Step 3: Cross multiply
    135,943.25x = 187,669.85 × 84,984.30
  4. Step 4: Simplify right side
    135,943.25x = 15,948,990,408.43
  5. Step 5: Solve for x
    x = 15,948,990,408.43/135,943.25
  6. Step 6: Final answer
    x = 117,320.95

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1.5x scale

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.