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Finding the Fourth Proportional to 88,371.84, 121,790.88 and 82,760.16

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Solution

The fourth proportional to 88,371.84, 121,790.88 and 82,760.16 is: 114,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,371.84 : 121,790.88 = 82,760.16 : x
  2. Step 2: Convert to fraction form
    88,371.84/121,790.88 = 82,760.16/x
  3. Step 3: Cross multiply
    88,371.84x = 121,790.88 × 82,760.16
  4. Step 4: Simplify right side
    88,371.84x = 10,079,432,715.34
  5. Step 5: Solve for x
    x = 10,079,432,715.34/88,371.84
  6. Step 6: Final answer
    x = 114,057.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.