Home / 143,132.68-197,519.34-79,468.84

Finding the Fourth Proportional to 143,132.68, 197,519.34 and 79,468.84

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Solution

The fourth proportional to 143,132.68, 197,519.34 and 79,468.84 is: 109,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.68 : 197,519.34 = 79,468.84 : x
  2. Step 2: Convert to fraction form
    143,132.68/197,519.34 = 79,468.84/x
  3. Step 3: Cross multiply
    143,132.68x = 197,519.34 × 79,468.84
  4. Step 4: Simplify right side
    143,132.68x = 15,696,632,827.37
  5. Step 5: Solve for x
    x = 15,696,632,827.37/143,132.68
  6. Step 6: Final answer
    x = 109,664.91

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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.