Home / 121,210.96-181,704.18-61,915.85

Finding the Fourth Proportional to 121,210.96, 181,704.18 and 61,915.85

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Solution

The fourth proportional to 121,210.96, 181,704.18 and 61,915.85 is: 92,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,210.96 : 181,704.18 = 61,915.85 : x
  2. Step 2: Convert to fraction form
    121,210.96/181,704.18 = 61,915.85/x
  3. Step 3: Cross multiply
    121,210.96x = 181,704.18 × 61,915.85
  4. Step 4: Simplify right side
    121,210.96x = 11,250,368,753.25
  5. Step 5: Solve for x
    x = 11,250,368,753.25/121,210.96
  6. Step 6: Final answer
    x = 92,816.44

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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.