Home / 160,867.92-221,979.96-89,230.08

Finding the Fourth Proportional to 160,867.92, 221,979.96 and 89,230.08

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Solution

The fourth proportional to 160,867.92, 221,979.96 and 89,230.08 is: 123,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,867.92 : 221,979.96 = 89,230.08 : x
  2. Step 2: Convert to fraction form
    160,867.92/221,979.96 = 89,230.08/x
  3. Step 3: Cross multiply
    160,867.92x = 221,979.96 × 89,230.08
  4. Step 4: Simplify right side
    160,867.92x = 19,807,289,589.20
  5. Step 5: Solve for x
    x = 19,807,289,589.20/160,867.92
  6. Step 6: Final answer
    x = 123,127.65

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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.