Home / 107,869.40-161,775.30-32,989.40

Finding the Fourth Proportional to 107,869.40, 161,775.30 and 32,989.40

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Solution

The fourth proportional to 107,869.40, 161,775.30 and 32,989.40 is: 49,475.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,869.40 : 161,775.30 = 32,989.40 : x
  2. Step 2: Convert to fraction form
    107,869.40/161,775.30 = 32,989.40/x
  3. Step 3: Cross multiply
    107,869.40x = 161,775.30 × 32,989.40
  4. Step 4: Simplify right side
    107,869.40x = 5,336,870,081.82
  5. Step 5: Solve for x
    x = 5,336,870,081.82/107,869.40
  6. Step 6: Final answer
    x = 49,475.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.