Home / 143,582.16-198,148-79,058.22

Finding the Fourth Proportional to 143,582.16, 198,148 and 79,058.22

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Solution

The fourth proportional to 143,582.16, 198,148 and 79,058.22 is: 109,102.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,582.16 : 198,148 = 79,058.22 : x
  2. Step 2: Convert to fraction form
    143,582.16/198,148 = 79,058.22/x
  3. Step 3: Cross multiply
    143,582.16x = 198,148 × 79,058.22
  4. Step 4: Simplify right side
    143,582.16x = 15,665,228,176.56
  5. Step 5: Solve for x
    x = 15,665,228,176.56/143,582.16
  6. Step 6: Final answer
    x = 109,102.89

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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.