Home / 205,534.87-308,301.90-77,475.09

Finding the Fourth Proportional to 205,534.87, 308,301.90 and 77,475.09

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Solution

The fourth proportional to 205,534.87, 308,301.90 and 77,475.09 is: 116,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,534.87 : 308,301.90 = 77,475.09 : x
  2. Step 2: Convert to fraction form
    205,534.87/308,301.90 = 77,475.09/x
  3. Step 3: Cross multiply
    205,534.87x = 308,301.90 × 77,475.09
  4. Step 4: Simplify right side
    205,534.87x = 23,885,717,449.67
  5. Step 5: Solve for x
    x = 23,885,717,449.67/205,534.87
  6. Step 6: Final answer
    x = 116,212.48

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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.