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Finding the Fourth Proportional to 151,949.88, 209,690.84 and 84,881.88

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Solution

The fourth proportional to 151,949.88, 209,690.84 and 84,881.88 is: 117,137.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,949.88 : 209,690.84 = 84,881.88 : x
  2. Step 2: Convert to fraction form
    151,949.88/209,690.84 = 84,881.88/x
  3. Step 3: Cross multiply
    151,949.88x = 209,690.84 × 84,881.88
  4. Step 4: Simplify right side
    151,949.88x = 17,798,952,717.98
  5. Step 5: Solve for x
    x = 17,798,952,717.98/151,949.88
  6. Step 6: Final answer
    x = 117,137.00

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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.