Home / 150,187.11-207,257.46-81,276.53

Finding the Fourth Proportional to 150,187.11, 207,257.46 and 81,276.53

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Solution

The fourth proportional to 150,187.11, 207,257.46 and 81,276.53 is: 112,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,187.11 : 207,257.46 = 81,276.53 : x
  2. Step 2: Convert to fraction form
    150,187.11/207,257.46 = 81,276.53/x
  3. Step 3: Cross multiply
    150,187.11x = 207,257.46 × 81,276.53
  4. Step 4: Simplify right side
    150,187.11x = 16,845,166,129.13
  5. Step 5: Solve for x
    x = 16,845,166,129.13/150,187.11
  6. Step 6: Final answer
    x = 112,161.20

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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.