Home / 117,319.83-175,936-61,135.80

Finding the Fourth Proportional to 117,319.83, 175,936 and 61,135.80

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Solution

The fourth proportional to 117,319.83, 175,936 and 61,135.80 is: 91,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,319.83 : 175,936 = 61,135.80 : x
  2. Step 2: Convert to fraction form
    117,319.83/175,936 = 61,135.80/x
  3. Step 3: Cross multiply
    117,319.83x = 175,936 × 61,135.80
  4. Step 4: Simplify right side
    117,319.83x = 10,755,988,108.80
  5. Step 5: Solve for x
    x = 10,755,988,108.80/117,319.83
  6. Step 6: Final answer
    x = 91,680.90

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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.