Home / 152,979.97-211,099.15-84,995.70

Finding the Fourth Proportional to 152,979.97, 211,099.15 and 84,995.70

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Solution

The fourth proportional to 152,979.97, 211,099.15 and 84,995.70 is: 117,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,979.97 : 211,099.15 = 84,995.70 : x
  2. Step 2: Convert to fraction form
    152,979.97/211,099.15 = 84,995.70/x
  3. Step 3: Cross multiply
    152,979.97x = 211,099.15 × 84,995.70
  4. Step 4: Simplify right side
    152,979.97x = 17,942,520,999.90
  5. Step 5: Solve for x
    x = 17,942,520,999.90/152,979.97
  6. Step 6: Final answer
    x = 117,286.74

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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.