Home / 143,132.18-197,518.65-79,468.34

Finding the Fourth Proportional to 143,132.18, 197,518.65 and 79,468.34

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Solution

The fourth proportional to 143,132.18, 197,518.65 and 79,468.34 is: 109,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.18 : 197,518.65 = 79,468.34 : x
  2. Step 2: Convert to fraction form
    143,132.18/197,518.65 = 79,468.34/x
  3. Step 3: Cross multiply
    143,132.18x = 197,518.65 × 79,468.34
  4. Step 4: Simplify right side
    143,132.18x = 15,696,479,234.54
  5. Step 5: Solve for x
    x = 15,696,479,234.54/143,132.18
  6. Step 6: Final answer
    x = 109,664.22

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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.