Home / 143,058.36-197,411.34-79,396.20

Finding the Fourth Proportional to 143,058.36, 197,411.34 and 79,396.20

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Solution

The fourth proportional to 143,058.36, 197,411.34 and 79,396.20 is: 109,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,058.36 : 197,411.34 = 79,396.20 : x
  2. Step 2: Convert to fraction form
    143,058.36/197,411.34 = 79,396.20/x
  3. Step 3: Cross multiply
    143,058.36x = 197,411.34 × 79,396.20
  4. Step 4: Simplify right side
    143,058.36x = 15,673,710,232.91
  5. Step 5: Solve for x
    x = 15,673,710,232.91/143,058.36
  6. Step 6: Final answer
    x = 109,561.65

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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.