Home / 85,066.26-127,336.95-77,808.66

Finding the Fourth Proportional to 85,066.26, 127,336.95 and 77,808.66

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Solution

The fourth proportional to 85,066.26, 127,336.95 and 77,808.66 is: 116,472.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,066.26 : 127,336.95 = 77,808.66 : x
  2. Step 2: Convert to fraction form
    85,066.26/127,336.95 = 77,808.66/x
  3. Step 3: Cross multiply
    85,066.26x = 127,336.95 × 77,808.66
  4. Step 4: Simplify right side
    85,066.26x = 9,907,917,447.99
  5. Step 5: Solve for x
    x = 9,907,917,447.99/85,066.26
  6. Step 6: Final answer
    x = 116,472.94

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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.