Home / 117,740.10-162,472.86-66,753.84

Finding the Fourth Proportional to 117,740.10, 162,472.86 and 66,753.84

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Solution

The fourth proportional to 117,740.10, 162,472.86 and 66,753.84 is: 92,115.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.10 : 162,472.86 = 66,753.84 : x
  2. Step 2: Convert to fraction form
    117,740.10/162,472.86 = 66,753.84/x
  3. Step 3: Cross multiply
    117,740.10x = 162,472.86 × 66,753.84
  4. Step 4: Simplify right side
    117,740.10x = 10,845,687,300.78
  5. Step 5: Solve for x
    x = 10,845,687,300.78/117,740.10
  6. Step 6: Final answer
    x = 92,115.49

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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.