Home / 143,526.66-198,061.90-79,863.09

Finding the Fourth Proportional to 143,526.66, 198,061.90 and 79,863.09

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Solution

The fourth proportional to 143,526.66, 198,061.90 and 79,863.09 is: 110,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,526.66 : 198,061.90 = 79,863.09 : x
  2. Step 2: Convert to fraction form
    143,526.66/198,061.90 = 79,863.09/x
  3. Step 3: Cross multiply
    143,526.66x = 198,061.90 × 79,863.09
  4. Step 4: Simplify right side
    143,526.66x = 15,817,835,345.27
  5. Step 5: Solve for x
    x = 15,817,835,345.27/143,526.66
  6. Step 6: Final answer
    x = 110,208.34

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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.