Home / 159,583.75-220,225.59-87,965.33

Finding the Fourth Proportional to 159,583.75, 220,225.59 and 87,965.33

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Solution

The fourth proportional to 159,583.75, 220,225.59 and 87,965.33 is: 121,392.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,583.75 : 220,225.59 = 87,965.33 : x
  2. Step 2: Convert to fraction form
    159,583.75/220,225.59 = 87,965.33/x
  3. Step 3: Cross multiply
    159,583.75x = 220,225.59 × 87,965.33
  4. Step 4: Simplify right side
    159,583.75x = 19,372,216,698.79
  5. Step 5: Solve for x
    x = 19,372,216,698.79/159,583.75
  6. Step 6: Final answer
    x = 121,392.16

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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.