Home / 165,688.03-248,158.18-76,754.71

Finding the Fourth Proportional to 165,688.03, 248,158.18 and 76,754.71

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Solution

The fourth proportional to 165,688.03, 248,158.18 and 76,754.71 is: 114,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,688.03 : 248,158.18 = 76,754.71 : x
  2. Step 2: Convert to fraction form
    165,688.03/248,158.18 = 76,754.71/x
  3. Step 3: Cross multiply
    165,688.03x = 248,158.18 × 76,754.71
  4. Step 4: Simplify right side
    165,688.03x = 19,047,309,140.03
  5. Step 5: Solve for x
    x = 19,047,309,140.03/165,688.03
  6. Step 6: Final answer
    x = 114,958.87

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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.