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Finding the Fourth Proportional to 168,877.88, 253,253.30 and 68,984.70

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Solution

The fourth proportional to 168,877.88, 253,253.30 and 68,984.70 is: 103,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,877.88 : 253,253.30 = 68,984.70 : x
  2. Step 2: Convert to fraction form
    168,877.88/253,253.30 = 68,984.70/x
  3. Step 3: Cross multiply
    168,877.88x = 253,253.30 × 68,984.70
  4. Step 4: Simplify right side
    168,877.88x = 17,470,602,924.51
  5. Step 5: Solve for x
    x = 17,470,602,924.51/168,877.88
  6. Step 6: Final answer
    x = 103,451.10

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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.