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Finding the Fourth Proportional to 149,371.84, 206,088.92 and 88,894

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Solution

The fourth proportional to 149,371.84, 206,088.92 and 88,894 is: 122,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,371.84 : 206,088.92 = 88,894 : x
  2. Step 2: Convert to fraction form
    149,371.84/206,088.92 = 88,894/x
  3. Step 3: Cross multiply
    149,371.84x = 206,088.92 × 88,894
  4. Step 4: Simplify right side
    149,371.84x = 18,320,068,454.48
  5. Step 5: Solve for x
    x = 18,320,068,454.48/149,371.84
  6. Step 6: Final answer
    x = 122,647.40

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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.