Home / 160,853.76-221,976.54-89,231.94

Finding the Fourth Proportional to 160,853.76, 221,976.54 and 89,231.94

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Solution

The fourth proportional to 160,853.76, 221,976.54 and 89,231.94 is: 123,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,853.76 : 221,976.54 = 89,231.94 : x
  2. Step 2: Convert to fraction form
    160,853.76/221,976.54 = 89,231.94/x
  3. Step 3: Cross multiply
    160,853.76x = 221,976.54 × 89,231.94
  4. Step 4: Simplify right side
    160,853.76x = 19,807,397,298.69
  5. Step 5: Solve for x
    x = 19,807,397,298.69/160,853.76
  6. Step 6: Final answer
    x = 123,139.16

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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.