Home / 143,088.56-197,471.16-79,427.42

Finding the Fourth Proportional to 143,088.56, 197,471.16 and 79,427.42

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Solution

The fourth proportional to 143,088.56, 197,471.16 and 79,427.42 is: 109,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,088.56 : 197,471.16 = 79,427.42 : x
  2. Step 2: Convert to fraction form
    143,088.56/197,471.16 = 79,427.42/x
  3. Step 3: Cross multiply
    143,088.56x = 197,471.16 × 79,427.42
  4. Step 4: Simplify right side
    143,088.56x = 15,684,624,763.21
  5. Step 5: Solve for x
    x = 15,684,624,763.21/143,088.56
  6. Step 6: Final answer
    x = 109,614.81

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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.