Home / 121,769.61-168,043.05-68,056.89

Finding the Fourth Proportional to 121,769.61, 168,043.05 and 68,056.89

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Solution

The fourth proportional to 121,769.61, 168,043.05 and 68,056.89 is: 93,919.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,769.61 : 168,043.05 = 68,056.89 : x
  2. Step 2: Convert to fraction form
    121,769.61/168,043.05 = 68,056.89/x
  3. Step 3: Cross multiply
    121,769.61x = 168,043.05 × 68,056.89
  4. Step 4: Simplify right side
    121,769.61x = 11,436,487,369.11
  5. Step 5: Solve for x
    x = 11,436,487,369.11/121,769.61
  6. Step 6: Final answer
    x = 93,919.06

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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.