Home / 117,399.62-162,081.29-77,184.74

Finding the Fourth Proportional to 117,399.62, 162,081.29 and 77,184.74

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Solution

The fourth proportional to 117,399.62, 162,081.29 and 77,184.74 is: 106,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,399.62 : 162,081.29 = 77,184.74 : x
  2. Step 2: Convert to fraction form
    117,399.62/162,081.29 = 77,184.74/x
  3. Step 3: Cross multiply
    117,399.62x = 162,081.29 × 77,184.74
  4. Step 4: Simplify right side
    117,399.62x = 12,510,202,227.51
  5. Step 5: Solve for x
    x = 12,510,202,227.51/117,399.62
  6. Step 6: Final answer
    x = 106,560.84

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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.