Home / 160,743.74-221,825.28-89,123.78

Finding the Fourth Proportional to 160,743.74, 221,825.28 and 89,123.78

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Solution

The fourth proportional to 160,743.74, 221,825.28 and 89,123.78 is: 122,990.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,743.74 : 221,825.28 = 89,123.78 : x
  2. Step 2: Convert to fraction form
    160,743.74/221,825.28 = 89,123.78/x
  3. Step 3: Cross multiply
    160,743.74x = 221,825.28 × 89,123.78
  4. Step 4: Simplify right side
    160,743.74x = 19,769,907,453.16
  5. Step 5: Solve for x
    x = 19,769,907,453.16/160,743.74
  6. Step 6: Final answer
    x = 122,990.22

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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.