Home / 143,058.28-197,417.70-79,396.84

Finding the Fourth Proportional to 143,058.28, 197,417.70 and 79,396.84

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Solution

The fourth proportional to 143,058.28, 197,417.70 and 79,396.84 is: 109,566.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,058.28 : 197,417.70 = 79,396.84 : x
  2. Step 2: Convert to fraction form
    143,058.28/197,417.70 = 79,396.84/x
  3. Step 3: Cross multiply
    143,058.28x = 197,417.70 × 79,396.84
  4. Step 4: Simplify right side
    143,058.28x = 15,674,341,540.07
  5. Step 5: Solve for x
    x = 15,674,341,540.07/143,058.28
  6. Step 6: Final answer
    x = 109,566.13

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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.