Home / 205,056.30-307,475.10-86,593.80

Finding the Fourth Proportional to 205,056.30, 307,475.10 and 86,593.80

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Solution

The fourth proportional to 205,056.30, 307,475.10 and 86,593.80 is: 129,844.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,056.30 : 307,475.10 = 86,593.80 : x
  2. Step 2: Convert to fraction form
    205,056.30/307,475.10 = 86,593.80/x
  3. Step 3: Cross multiply
    205,056.30x = 307,475.10 × 86,593.80
  4. Step 4: Simplify right side
    205,056.30x = 26,625,437,314.38
  5. Step 5: Solve for x
    x = 26,625,437,314.38/205,056.30
  6. Step 6: Final answer
    x = 129,844.52

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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.