Home / 165,018.50-247,488.11-76,186.65

Finding the Fourth Proportional to 165,018.50, 247,488.11 and 76,186.65

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Solution

The fourth proportional to 165,018.50, 247,488.11 and 76,186.65 is: 114,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,018.50 : 247,488.11 = 76,186.65 : x
  2. Step 2: Convert to fraction form
    165,018.50/247,488.11 = 76,186.65/x
  3. Step 3: Cross multiply
    165,018.50x = 247,488.11 × 76,186.65
  4. Step 4: Simplify right side
    165,018.50x = 18,855,290,015.73
  5. Step 5: Solve for x
    x = 18,855,290,015.73/165,018.50
  6. Step 6: Final answer
    x = 114,261.67

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1.5x scale

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.