Home / 117,740.78-162,477.34-66,756.94

Finding the Fourth Proportional to 117,740.78, 162,477.34 and 66,756.94

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Solution

The fourth proportional to 117,740.78, 162,477.34 and 66,756.94 is: 92,121.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,740.78 : 162,477.34 = 66,756.94 : x
  2. Step 2: Convert to fraction form
    117,740.78/162,477.34 = 66,756.94/x
  3. Step 3: Cross multiply
    117,740.78x = 162,477.34 × 66,756.94
  4. Step 4: Simplify right side
    117,740.78x = 10,846,490,037.74
  5. Step 5: Solve for x
    x = 10,846,490,037.74/117,740.78
  6. Step 6: Final answer
    x = 92,121.78

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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.