Home / 209,186.16-313,819.92-76,064.28

Finding the Fourth Proportional to 209,186.16, 313,819.92 and 76,064.28

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Solution

The fourth proportional to 209,186.16, 313,819.92 and 76,064.28 is: 114,111.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,186.16 : 313,819.92 = 76,064.28 : x
  2. Step 2: Convert to fraction form
    209,186.16/313,819.92 = 76,064.28/x
  3. Step 3: Cross multiply
    209,186.16x = 313,819.92 × 76,064.28
  4. Step 4: Simplify right side
    209,186.16x = 23,870,486,264.46
  5. Step 5: Solve for x
    x = 23,870,486,264.46/209,186.16
  6. Step 6: Final answer
    x = 114,111.21

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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.