Home / 205,098.59-307,647.75-105,203.18

Finding the Fourth Proportional to 205,098.59, 307,647.75 and 105,203.18

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Solution

The fourth proportional to 205,098.59, 307,647.75 and 105,203.18 is: 157,804.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,098.59 : 307,647.75 = 105,203.18 : x
  2. Step 2: Convert to fraction form
    205,098.59/307,647.75 = 105,203.18/x
  3. Step 3: Cross multiply
    205,098.59x = 307,647.75 × 105,203.18
  4. Step 4: Simplify right side
    205,098.59x = 32,365,521,619.85
  5. Step 5: Solve for x
    x = 32,365,521,619.85/205,098.59
  6. Step 6: Final answer
    x = 157,804.70

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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.