Home / 106,979.32-147,656.22-71,170.84

Finding the Fourth Proportional to 106,979.32, 147,656.22 and 71,170.84

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Solution

The fourth proportional to 106,979.32, 147,656.22 and 71,170.84 is: 98,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,979.32 : 147,656.22 = 71,170.84 : x
  2. Step 2: Convert to fraction form
    106,979.32/147,656.22 = 71,170.84/x
  3. Step 3: Cross multiply
    106,979.32x = 147,656.22 × 71,170.84
  4. Step 4: Simplify right side
    106,979.32x = 10,508,817,208.62
  5. Step 5: Solve for x
    x = 10,508,817,208.62/106,979.32
  6. Step 6: Final answer
    x = 98,232.23

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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.