Home / 143,160.24-197,555.04-79,502.34

Finding the Fourth Proportional to 143,160.24, 197,555.04 and 79,502.34

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Solution

The fourth proportional to 143,160.24, 197,555.04 and 79,502.34 is: 109,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,160.24 : 197,555.04 = 79,502.34 : x
  2. Step 2: Convert to fraction form
    143,160.24/197,555.04 = 79,502.34/x
  3. Step 3: Cross multiply
    143,160.24x = 197,555.04 × 79,502.34
  4. Step 4: Simplify right side
    143,160.24x = 15,706,087,958.79
  5. Step 5: Solve for x
    x = 15,706,087,958.79/143,160.24
  6. Step 6: Final answer
    x = 109,709.85

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1.5x scale

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.