Home / 159,582.75-220,224.21-87,964.33

Finding the Fourth Proportional to 159,582.75, 220,224.21 and 87,964.33

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Solution

The fourth proportional to 159,582.75, 220,224.21 and 87,964.33 is: 121,390.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,582.75 : 220,224.21 = 87,964.33 : x
  2. Step 2: Convert to fraction form
    159,582.75/220,224.21 = 87,964.33/x
  3. Step 3: Cross multiply
    159,582.75x = 220,224.21 × 87,964.33
  4. Step 4: Simplify right side
    159,582.75x = 19,371,875,082.43
  5. Step 5: Solve for x
    x = 19,371,875,082.43/159,582.75
  6. Step 6: Final answer
    x = 121,390.78

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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.