Home / 117,602.36-162,292.38-63,887.78

Finding the Fourth Proportional to 117,602.36, 162,292.38 and 63,887.78

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Solution

The fourth proportional to 117,602.36, 162,292.38 and 63,887.78 is: 88,165.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,602.36 : 162,292.38 = 63,887.78 : x
  2. Step 2: Convert to fraction form
    117,602.36/162,292.38 = 63,887.78/x
  3. Step 3: Cross multiply
    117,602.36x = 162,292.38 × 63,887.78
  4. Step 4: Simplify right side
    117,602.36x = 10,368,499,869.12
  5. Step 5: Solve for x
    x = 10,368,499,869.12/117,602.36
  6. Step 6: Final answer
    x = 88,165.75

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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.