Home / 205,159.35-307,708.23-64,899.75

Finding the Fourth Proportional to 205,159.35, 307,708.23 and 64,899.75

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Solution

The fourth proportional to 205,159.35, 307,708.23 and 64,899.75 is: 97,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,159.35 : 307,708.23 = 64,899.75 : x
  2. Step 2: Convert to fraction form
    205,159.35/307,708.23 = 64,899.75/x
  3. Step 3: Cross multiply
    205,159.35x = 307,708.23 × 64,899.75
  4. Step 4: Simplify right side
    205,159.35x = 19,970,187,199.94
  5. Step 5: Solve for x
    x = 19,970,187,199.94/205,159.35
  6. Step 6: Final answer
    x = 97,339.88

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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.