Home / 137,456.12-205,834.16-90,566.84

Finding the Fourth Proportional to 137,456.12, 205,834.16 and 90,566.84

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Solution

The fourth proportional to 137,456.12, 205,834.16 and 90,566.84 is: 135,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,456.12 : 205,834.16 = 90,566.84 : x
  2. Step 2: Convert to fraction form
    137,456.12/205,834.16 = 90,566.84/x
  3. Step 3: Cross multiply
    137,456.12x = 205,834.16 × 90,566.84
  4. Step 4: Simplify right side
    137,456.12x = 18,641,747,953.25
  5. Step 5: Solve for x
    x = 18,641,747,953.25/137,456.12
  6. Step 6: Final answer
    x = 135,619.63

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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.