Home / 117,838.60-162,618.78-64,125.07

Finding the Fourth Proportional to 117,838.60, 162,618.78 and 64,125.07

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Solution

The fourth proportional to 117,838.60, 162,618.78 and 64,125.07 is: 88,493.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,838.60 : 162,618.78 = 64,125.07 : x
  2. Step 2: Convert to fraction form
    117,838.60/162,618.78 = 64,125.07/x
  3. Step 3: Cross multiply
    117,838.60x = 162,618.78 × 64,125.07
  4. Step 4: Simplify right side
    117,838.60x = 10,427,940,650.81
  5. Step 5: Solve for x
    x = 10,427,940,650.81/117,838.60
  6. Step 6: Final answer
    x = 88,493.42

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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.