Home / 109,741.30-164,611.95-75,915.70

Finding the Fourth Proportional to 109,741.30, 164,611.95 and 75,915.70

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Solution

The fourth proportional to 109,741.30, 164,611.95 and 75,915.70 is: 113,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,741.30 : 164,611.95 = 75,915.70 : x
  2. Step 2: Convert to fraction form
    109,741.30/164,611.95 = 75,915.70/x
  3. Step 3: Cross multiply
    109,741.30x = 164,611.95 × 75,915.70
  4. Step 4: Simplify right side
    109,741.30x = 12,496,631,412.62
  5. Step 5: Solve for x
    x = 12,496,631,412.62/109,741.30
  6. Step 6: Final answer
    x = 113,873.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.