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Finding the Fourth Proportional to 117,771, 162,525.60 and 67,470

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Solution

The fourth proportional to 117,771, 162,525.60 and 67,470 is: 93,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,771 : 162,525.60 = 67,470 : x
  2. Step 2: Convert to fraction form
    117,771/162,525.60 = 67,470/x
  3. Step 3: Cross multiply
    117,771x = 162,525.60 × 67,470
  4. Step 4: Simplify right side
    117,771x = 10,965,602,232
  5. Step 5: Solve for x
    x = 10,965,602,232/117,771
  6. Step 6: Final answer
    x = 93,109.53

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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.