Home / 143,388.18-197,924.91-86,799.57

Finding the Fourth Proportional to 143,388.18, 197,924.91 and 86,799.57

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Solution

The fourth proportional to 143,388.18, 197,924.91 and 86,799.57 is: 119,813.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,388.18 : 197,924.91 = 86,799.57 : x
  2. Step 2: Convert to fraction form
    143,388.18/197,924.91 = 86,799.57/x
  3. Step 3: Cross multiply
    143,388.18x = 197,924.91 × 86,799.57
  4. Step 4: Simplify right side
    143,388.18x = 17,179,797,080.29
  5. Step 5: Solve for x
    x = 17,179,797,080.29/143,388.18
  6. Step 6: Final answer
    x = 119,813.20

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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.