Home / 175,876.22-242,721.09-99,368.78

Finding the Fourth Proportional to 175,876.22, 242,721.09 and 99,368.78

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Solution

The fourth proportional to 175,876.22, 242,721.09 and 99,368.78 is: 137,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,876.22 : 242,721.09 = 99,368.78 : x
  2. Step 2: Convert to fraction form
    175,876.22/242,721.09 = 99,368.78/x
  3. Step 3: Cross multiply
    175,876.22x = 242,721.09 × 99,368.78
  4. Step 4: Simplify right side
    175,876.22x = 24,118,898,593.57
  5. Step 5: Solve for x
    x = 24,118,898,593.57/175,876.22
  6. Step 6: Final answer
    x = 137,135.64

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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.