Home / 205,580.61-308,392.05-77,604.69

Finding the Fourth Proportional to 205,580.61, 308,392.05 and 77,604.69

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Solution

The fourth proportional to 205,580.61, 308,392.05 and 77,604.69 is: 116,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,580.61 : 308,392.05 = 77,604.69 : x
  2. Step 2: Convert to fraction form
    205,580.61/308,392.05 = 77,604.69/x
  3. Step 3: Cross multiply
    205,580.61x = 308,392.05 × 77,604.69
  4. Step 4: Simplify right side
    205,580.61x = 23,932,669,438.71
  5. Step 5: Solve for x
    x = 23,932,669,438.71/205,580.61
  6. Step 6: Final answer
    x = 116,415.01

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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.