Home / 159,588.83-220,232.52-87,970.05

Finding the Fourth Proportional to 159,588.83, 220,232.52 and 87,970.05

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Solution

The fourth proportional to 159,588.83, 220,232.52 and 87,970.05 is: 121,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,588.83 : 220,232.52 = 87,970.05 : x
  2. Step 2: Convert to fraction form
    159,588.83/220,232.52 = 87,970.05/x
  3. Step 3: Cross multiply
    159,588.83x = 220,232.52 × 87,970.05
  4. Step 4: Simplify right side
    159,588.83x = 19,373,864,694.86
  5. Step 5: Solve for x
    x = 19,373,864,694.86/159,588.83
  6. Step 6: Final answer
    x = 121,398.63

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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.