Home / 121,211.76-181,827.98-36,990.84

Finding the Fourth Proportional to 121,211.76, 181,827.98 and 36,990.84

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Solution

The fourth proportional to 121,211.76, 181,827.98 and 36,990.84 is: 55,489.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.76 : 181,827.98 = 36,990.84 : x
  2. Step 2: Convert to fraction form
    121,211.76/181,827.98 = 36,990.84/x
  3. Step 3: Cross multiply
    121,211.76x = 181,827.98 × 36,990.84
  4. Step 4: Simplify right side
    121,211.76x = 6,725,969,715.70
  5. Step 5: Solve for x
    x = 6,725,969,715.70/121,211.76
  6. Step 6: Final answer
    x = 55,489.42

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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.