Home / 117,535.36-162,087.60-77,177.92

Finding the Fourth Proportional to 117,535.36, 162,087.60 and 77,177.92

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Solution

The fourth proportional to 117,535.36, 162,087.60 and 77,177.92 is: 106,432.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,535.36 : 162,087.60 = 77,177.92 : x
  2. Step 2: Convert to fraction form
    117,535.36/162,087.60 = 77,177.92/x
  3. Step 3: Cross multiply
    117,535.36x = 162,087.60 × 77,177.92
  4. Step 4: Simplify right side
    117,535.36x = 12,509,583,825.79
  5. Step 5: Solve for x
    x = 12,509,583,825.79/117,535.36
  6. Step 6: Final answer
    x = 106,432.51

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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.