Home / 131,822.76-181,915.26-71,393.52

Finding the Fourth Proportional to 131,822.76, 181,915.26 and 71,393.52

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Solution

The fourth proportional to 131,822.76, 181,915.26 and 71,393.52 is: 98,522.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,822.76 : 181,915.26 = 71,393.52 : x
  2. Step 2: Convert to fraction form
    131,822.76/181,915.26 = 71,393.52/x
  3. Step 3: Cross multiply
    131,822.76x = 181,915.26 × 71,393.52
  4. Step 4: Simplify right side
    131,822.76x = 12,987,570,753.12
  5. Step 5: Solve for x
    x = 12,987,570,753.12/131,822.76
  6. Step 6: Final answer
    x = 98,522.98

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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.