Home / 143,035.61-197,398.35-79,373.41

Finding the Fourth Proportional to 143,035.61, 197,398.35 and 79,373.41

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Solution

The fourth proportional to 143,035.61, 197,398.35 and 79,373.41 is: 109,540.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,035.61 : 197,398.35 = 79,373.41 : x
  2. Step 2: Convert to fraction form
    143,035.61/197,398.35 = 79,373.41/x
  3. Step 3: Cross multiply
    143,035.61x = 197,398.35 × 79,373.41
  4. Step 4: Simplify right side
    143,035.61x = 15,668,179,674.38
  5. Step 5: Solve for x
    x = 15,668,179,674.38/143,035.61
  6. Step 6: Final answer
    x = 109,540.42

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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.