Home / 127,538.72-176,033.76-77,228

Finding the Fourth Proportional to 127,538.72, 176,033.76 and 77,228

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Solution

The fourth proportional to 127,538.72, 176,033.76 and 77,228 is: 106,593.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,538.72 : 176,033.76 = 77,228 : x
  2. Step 2: Convert to fraction form
    127,538.72/176,033.76 = 77,228/x
  3. Step 3: Cross multiply
    127,538.72x = 176,033.76 × 77,228
  4. Step 4: Simplify right side
    127,538.72x = 13,594,735,217.28
  5. Step 5: Solve for x
    x = 13,594,735,217.28/127,538.72
  6. Step 6: Final answer
    x = 106,593.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.