Home / 143,055.48-197,414.10-79,395.96

Finding the Fourth Proportional to 143,055.48, 197,414.10 and 79,395.96

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Solution

The fourth proportional to 143,055.48, 197,414.10 and 79,395.96 is: 109,565.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,055.48 : 197,414.10 = 79,395.96 : x
  2. Step 2: Convert to fraction form
    143,055.48/197,414.10 = 79,395.96/x
  3. Step 3: Cross multiply
    143,055.48x = 197,414.10 × 79,395.96
  4. Step 4: Simplify right side
    143,055.48x = 15,673,881,987.04
  5. Step 5: Solve for x
    x = 15,673,881,987.04/143,055.48
  6. Step 6: Final answer
    x = 109,565.06

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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.