Home / 159,869.37-220,592.12-91,870.41

Finding the Fourth Proportional to 159,869.37, 220,592.12 and 91,870.41

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Solution

The fourth proportional to 159,869.37, 220,592.12 and 91,870.41 is: 126,765.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,869.37 : 220,592.12 = 91,870.41 : x
  2. Step 2: Convert to fraction form
    159,869.37/220,592.12 = 91,870.41/x
  3. Step 3: Cross multiply
    159,869.37x = 220,592.12 × 91,870.41
  4. Step 4: Simplify right side
    159,869.37x = 20,265,888,047.82
  5. Step 5: Solve for x
    x = 20,265,888,047.82/159,869.37
  6. Step 6: Final answer
    x = 126,765.30

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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.