Home / 121,885.56-182,456.55-109,239.84

Finding the Fourth Proportional to 121,885.56, 182,456.55 and 109,239.84

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Solution

The fourth proportional to 121,885.56, 182,456.55 and 109,239.84 is: 163,526.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,885.56 : 182,456.55 = 109,239.84 : x
  2. Step 2: Convert to fraction form
    121,885.56/182,456.55 = 109,239.84/x
  3. Step 3: Cross multiply
    121,885.56x = 182,456.55 × 109,239.84
  4. Step 4: Simplify right side
    121,885.56x = 19,931,524,328.95
  5. Step 5: Solve for x
    x = 19,931,524,328.95/121,885.56
  6. Step 6: Final answer
    x = 163,526.54

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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.