Home / 205,050.43-307,575.78-70,115.49

Finding the Fourth Proportional to 205,050.43, 307,575.78 and 70,115.49

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Solution

The fourth proportional to 205,050.43, 307,575.78 and 70,115.49 is: 105,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,050.43 : 307,575.78 = 70,115.49 : x
  2. Step 2: Convert to fraction form
    205,050.43/307,575.78 = 70,115.49/x
  3. Step 3: Cross multiply
    205,050.43x = 307,575.78 × 70,115.49
  4. Step 4: Simplify right side
    205,050.43x = 21,565,826,526.83
  5. Step 5: Solve for x
    x = 21,565,826,526.83/205,050.43
  6. Step 6: Final answer
    x = 105,173.28

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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.