Home / 121,955.21-182,696.09-89,876.02

Finding the Fourth Proportional to 121,955.21, 182,696.09 and 89,876.02

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Solution

The fourth proportional to 121,955.21, 182,696.09 and 89,876.02 is: 134,639.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,955.21 : 182,696.09 = 89,876.02 : x
  2. Step 2: Convert to fraction form
    121,955.21/182,696.09 = 89,876.02/x
  3. Step 3: Cross multiply
    121,955.21x = 182,696.09 × 89,876.02
  4. Step 4: Simplify right side
    121,955.21x = 16,419,997,438.76
  5. Step 5: Solve for x
    x = 16,419,997,438.76/121,955.21
  6. Step 6: Final answer
    x = 134,639.57

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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.