Home / 117,740.56-162,445.92-66,745.12

Finding the Fourth Proportional to 117,740.56, 162,445.92 and 66,745.12

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Solution

The fourth proportional to 117,740.56, 162,445.92 and 66,745.12 is: 92,087.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.56 : 162,445.92 = 66,745.12 : x
  2. Step 2: Convert to fraction form
    117,740.56/162,445.92 = 66,745.12/x
  3. Step 3: Cross multiply
    117,740.56x = 162,445.92 × 66,745.12
  4. Step 4: Simplify right side
    117,740.56x = 10,842,472,423.91
  5. Step 5: Solve for x
    x = 10,842,472,423.91/117,740.56
  6. Step 6: Final answer
    x = 92,087.83

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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.