Home / 209,017.92-313,312.36-82,606.96

Finding the Fourth Proportional to 209,017.92, 313,312.36 and 82,606.96

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Solution

The fourth proportional to 209,017.92, 313,312.36 and 82,606.96 is: 123,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,017.92 : 313,312.36 = 82,606.96 : x
  2. Step 2: Convert to fraction form
    209,017.92/313,312.36 = 82,606.96/x
  3. Step 3: Cross multiply
    209,017.92x = 313,312.36 × 82,606.96
  4. Step 4: Simplify right side
    209,017.92x = 25,881,781,590.03
  5. Step 5: Solve for x
    x = 25,881,781,590.03/209,017.92
  6. Step 6: Final answer
    x = 123,825.66

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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.