Home / 117,418.17-175,905.81-90,993.75

Finding the Fourth Proportional to 117,418.17, 175,905.81 and 90,993.75

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Solution

The fourth proportional to 117,418.17, 175,905.81 and 90,993.75 is: 136,319.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,418.17 : 175,905.81 = 90,993.75 : x
  2. Step 2: Convert to fraction form
    117,418.17/175,905.81 = 90,993.75/x
  3. Step 3: Cross multiply
    117,418.17x = 175,905.81 × 90,993.75
  4. Step 4: Simplify right side
    117,418.17x = 16,006,329,298.69
  5. Step 5: Solve for x
    x = 16,006,329,298.69/117,418.17
  6. Step 6: Final answer
    x = 136,319.02

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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.