Home / 131,823.10-181,915.82-71,393.74

Finding the Fourth Proportional to 131,823.10, 181,915.82 and 71,393.74

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Solution

The fourth proportional to 131,823.10, 181,915.82 and 71,393.74 is: 98,523.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,823.10 : 181,915.82 = 71,393.74 : x
  2. Step 2: Convert to fraction form
    131,823.10/181,915.82 = 71,393.74/x
  3. Step 3: Cross multiply
    131,823.10x = 181,915.82 × 71,393.74
  4. Step 4: Simplify right side
    131,823.10x = 12,987,650,928.19
  5. Step 5: Solve for x
    x = 12,987,650,928.19/131,823.10
  6. Step 6: Final answer
    x = 98,523.33

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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.