Home / 205,315.59-307,973.39-77,255.95

Finding the Fourth Proportional to 205,315.59, 307,973.39 and 77,255.95

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Solution

The fourth proportional to 205,315.59, 307,973.39 and 77,255.95 is: 115,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,315.59 : 307,973.39 = 77,255.95 : x
  2. Step 2: Convert to fraction form
    205,315.59/307,973.39 = 77,255.95/x
  3. Step 3: Cross multiply
    205,315.59x = 307,973.39 × 77,255.95
  4. Step 4: Simplify right side
    205,315.59x = 23,792,776,819.17
  5. Step 5: Solve for x
    x = 23,792,776,819.17/205,315.59
  6. Step 6: Final answer
    x = 115,883.93

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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.