Home / 143,930.32-198,659.45-98,065.82

Finding the Fourth Proportional to 143,930.32, 198,659.45 and 98,065.82

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Solution

The fourth proportional to 143,930.32, 198,659.45 and 98,065.82 is: 135,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,930.32 : 198,659.45 = 98,065.82 : x
  2. Step 2: Convert to fraction form
    143,930.32/198,659.45 = 98,065.82/x
  3. Step 3: Cross multiply
    143,930.32x = 198,659.45 × 98,065.82
  4. Step 4: Simplify right side
    143,930.32x = 19,481,702,606.81
  5. Step 5: Solve for x
    x = 19,481,702,606.81/143,930.32
  6. Step 6: Final answer
    x = 135,355.10

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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.