Home / 159,739.72-220,431.90-88,105.48

Finding the Fourth Proportional to 159,739.72, 220,431.90 and 88,105.48

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Solution

The fourth proportional to 159,739.72, 220,431.90 and 88,105.48 is: 121,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,739.72 : 220,431.90 = 88,105.48 : x
  2. Step 2: Convert to fraction form
    159,739.72/220,431.90 = 88,105.48/x
  3. Step 3: Cross multiply
    159,739.72x = 220,431.90 × 88,105.48
  4. Step 4: Simplify right side
    159,739.72x = 19,421,258,356.81
  5. Step 5: Solve for x
    x = 19,421,258,356.81/159,739.72
  6. Step 6: Final answer
    x = 121,580.65

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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.