Home / 205,701.30-308,574.63-65,427.12

Finding the Fourth Proportional to 205,701.30, 308,574.63 and 65,427.12

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Solution

The fourth proportional to 205,701.30, 308,574.63 and 65,427.12 is: 98,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,701.30 : 308,574.63 = 65,427.12 : x
  2. Step 2: Convert to fraction form
    205,701.30/308,574.63 = 65,427.12/x
  3. Step 3: Cross multiply
    205,701.30x = 308,574.63 × 65,427.12
  4. Step 4: Simplify right side
    205,701.30x = 20,189,149,345.97
  5. Step 5: Solve for x
    x = 20,189,149,345.97/205,701.30
  6. Step 6: Final answer
    x = 98,147.89

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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.