Home / 209,296.15-313,937.17-90,967.51

Finding the Fourth Proportional to 209,296.15, 313,937.17 and 90,967.51

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Solution

The fourth proportional to 209,296.15, 313,937.17 and 90,967.51 is: 136,448.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,296.15 : 313,937.17 = 90,967.51 : x
  2. Step 2: Convert to fraction form
    209,296.15/313,937.17 = 90,967.51/x
  3. Step 3: Cross multiply
    209,296.15x = 313,937.17 × 90,967.51
  4. Step 4: Simplify right side
    209,296.15x = 28,558,082,651.35
  5. Step 5: Solve for x
    x = 28,558,082,651.35/209,296.15
  6. Step 6: Final answer
    x = 136,448.20

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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.