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Finding the Fourth Proportional to 117,477.31, 162,111.30 and 66,500.39

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Solution

The fourth proportional to 117,477.31, 162,111.30 and 66,500.39 is: 91,766.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.31 : 162,111.30 = 66,500.39 : x
  2. Step 2: Convert to fraction form
    117,477.31/162,111.30 = 66,500.39/x
  3. Step 3: Cross multiply
    117,477.31x = 162,111.30 × 66,500.39
  4. Step 4: Simplify right side
    117,477.31x = 10,780,463,862.85
  5. Step 5: Solve for x
    x = 10,780,463,862.85/117,477.31
  6. Step 6: Final answer
    x = 91,766.35

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1.5x scale

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.