Home / 143,884.22-198,572.06-79,366.10

Finding the Fourth Proportional to 143,884.22, 198,572.06 and 79,366.10

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Solution

The fourth proportional to 143,884.22, 198,572.06 and 79,366.10 is: 109,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,884.22 : 198,572.06 = 79,366.10 : x
  2. Step 2: Convert to fraction form
    143,884.22/198,572.06 = 79,366.10/x
  3. Step 3: Cross multiply
    143,884.22x = 198,572.06 × 79,366.10
  4. Step 4: Simplify right side
    143,884.22x = 15,759,889,971.17
  5. Step 5: Solve for x
    x = 15,759,889,971.17/143,884.22
  6. Step 6: Final answer
    x = 109,531.75

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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.