Home / 143,242.34-197,674.35-79,586.06

Finding the Fourth Proportional to 143,242.34, 197,674.35 and 79,586.06

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Solution

The fourth proportional to 143,242.34, 197,674.35 and 79,586.06 is: 109,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,242.34 : 197,674.35 = 79,586.06 : x
  2. Step 2: Convert to fraction form
    143,242.34/197,674.35 = 79,586.06/x
  3. Step 3: Cross multiply
    143,242.34x = 197,674.35 × 79,586.06
  4. Step 4: Simplify right side
    143,242.34x = 15,732,122,679.56
  5. Step 5: Solve for x
    x = 15,732,122,679.56/143,242.34
  6. Step 6: Final answer
    x = 109,828.72

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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.