Home / 159,550.02-220,176.32-87,928.50

Finding the Fourth Proportional to 159,550.02, 220,176.32 and 87,928.50

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Solution

The fourth proportional to 159,550.02, 220,176.32 and 87,928.50 is: 121,339.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,550.02 : 220,176.32 = 87,928.50 : x
  2. Step 2: Convert to fraction form
    159,550.02/220,176.32 = 87,928.50/x
  3. Step 3: Cross multiply
    159,550.02x = 220,176.32 × 87,928.50
  4. Step 4: Simplify right side
    159,550.02x = 19,359,773,553.12
  5. Step 5: Solve for x
    x = 19,359,773,553.12/159,550.02
  6. Step 6: Final answer
    x = 121,339.84

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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.