Home / 205,559.12-308,400.78-97,571.36

Finding the Fourth Proportional to 205,559.12, 308,400.78 and 97,571.36

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Solution

The fourth proportional to 205,559.12, 308,400.78 and 97,571.36 is: 146,386.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,559.12 : 308,400.78 = 97,571.36 : x
  2. Step 2: Convert to fraction form
    205,559.12/308,400.78 = 97,571.36/x
  3. Step 3: Cross multiply
    205,559.12x = 308,400.78 × 97,571.36
  4. Step 4: Simplify right side
    205,559.12x = 30,091,083,529.66
  5. Step 5: Solve for x
    x = 30,091,083,529.66/205,559.12
  6. Step 6: Final answer
    x = 146,386.52

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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.