Home / 143,890.83-198,566.64-79,366.03

Finding the Fourth Proportional to 143,890.83, 198,566.64 and 79,366.03

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Solution

The fourth proportional to 143,890.83, 198,566.64 and 79,366.03 is: 109,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,890.83 : 198,566.64 = 79,366.03 : x
  2. Step 2: Convert to fraction form
    143,890.83/198,566.64 = 79,366.03/x
  3. Step 3: Cross multiply
    143,890.83x = 198,566.64 × 79,366.03
  4. Step 4: Simplify right side
    143,890.83x = 15,759,445,410.82
  5. Step 5: Solve for x
    x = 15,759,445,410.82/143,890.83
  6. Step 6: Final answer
    x = 109,523.63

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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.