Home / 137,020.25-189,035.45-83,285.66

Finding the Fourth Proportional to 137,020.25, 189,035.45 and 83,285.66

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Solution

The fourth proportional to 137,020.25, 189,035.45 and 83,285.66 is: 114,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,020.25 : 189,035.45 = 83,285.66 : x
  2. Step 2: Convert to fraction form
    137,020.25/189,035.45 = 83,285.66/x
  3. Step 3: Cross multiply
    137,020.25x = 189,035.45 × 83,285.66
  4. Step 4: Simplify right side
    137,020.25x = 15,743,943,053.61
  5. Step 5: Solve for x
    x = 15,743,943,053.61/137,020.25
  6. Step 6: Final answer
    x = 114,902.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.