Home / 159,588.07-220,228.90-87,974.75

Finding the Fourth Proportional to 159,588.07, 220,228.90 and 87,974.75

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Solution

The fourth proportional to 159,588.07, 220,228.90 and 87,974.75 is: 121,403.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,588.07 : 220,228.90 = 87,974.75 : x
  2. Step 2: Convert to fraction form
    159,588.07/220,228.90 = 87,974.75/x
  3. Step 3: Cross multiply
    159,588.07x = 220,228.90 × 87,974.75
  4. Step 4: Simplify right side
    159,588.07x = 19,374,582,750.91
  5. Step 5: Solve for x
    x = 19,374,582,750.91/159,588.07
  6. Step 6: Final answer
    x = 121,403.71

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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.