Home / 231,099.39-318,887.84-135,571.23

Finding the Fourth Proportional to 231,099.39, 318,887.84 and 135,571.23

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Solution

The fourth proportional to 231,099.39, 318,887.84 and 135,571.23 is: 187,071.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,099.39 : 318,887.84 = 135,571.23 : x
  2. Step 2: Convert to fraction form
    231,099.39/318,887.84 = 135,571.23/x
  3. Step 3: Cross multiply
    231,099.39x = 318,887.84 × 135,571.23
  4. Step 4: Simplify right side
    231,099.39x = 43,232,016,700.84
  5. Step 5: Solve for x
    x = 43,232,016,700.84/231,099.39
  6. Step 6: Final answer
    x = 187,071.10

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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.