Home / 231,525.53-319,403.85-135,989.16

Finding the Fourth Proportional to 231,525.53, 319,403.85 and 135,989.16

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Solution

The fourth proportional to 231,525.53, 319,403.85 and 135,989.16 is: 187,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,525.53 : 319,403.85 = 135,989.16 : x
  2. Step 2: Convert to fraction form
    231,525.53/319,403.85 = 135,989.16/x
  3. Step 3: Cross multiply
    231,525.53x = 319,403.85 × 135,989.16
  4. Step 4: Simplify right side
    231,525.53x = 43,435,461,262.27
  5. Step 5: Solve for x
    x = 43,435,461,262.27/231,525.53
  6. Step 6: Final answer
    x = 187,605.50

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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.