Home / 159,261.90-219,775.92-87,635.22

Finding the Fourth Proportional to 159,261.90, 219,775.92 and 87,635.22

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Solution

The fourth proportional to 159,261.90, 219,775.92 and 87,635.22 is: 120,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,261.90 : 219,775.92 = 87,635.22 : x
  2. Step 2: Convert to fraction form
    159,261.90/219,775.92 = 87,635.22/x
  3. Step 3: Cross multiply
    159,261.90x = 219,775.92 × 87,635.22
  4. Step 4: Simplify right side
    159,261.90x = 19,260,111,099.90
  5. Step 5: Solve for x
    x = 19,260,111,099.90/159,261.90
  6. Step 6: Final answer
    x = 120,933.58

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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.