Home / 117,041.54-161,517.88-66,056.42

Finding the Fourth Proportional to 117,041.54, 161,517.88 and 66,056.42

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Solution

The fourth proportional to 117,041.54, 161,517.88 and 66,056.42 is: 91,158.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,041.54 : 161,517.88 = 66,056.42 : x
  2. Step 2: Convert to fraction form
    117,041.54/161,517.88 = 66,056.42/x
  3. Step 3: Cross multiply
    117,041.54x = 161,517.88 × 66,056.42
  4. Step 4: Simplify right side
    117,041.54x = 10,669,291,780.92
  5. Step 5: Solve for x
    x = 10,669,291,780.92/117,041.54
  6. Step 6: Final answer
    x = 91,158.16

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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.