Home / 117,007.43-161,470.31-66,031.02

Finding the Fourth Proportional to 117,007.43, 161,470.31 and 66,031.02

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Solution

The fourth proportional to 117,007.43, 161,470.31 and 66,031.02 is: 91,122.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,007.43 : 161,470.31 = 66,031.02 : x
  2. Step 2: Convert to fraction form
    117,007.43/161,470.31 = 66,031.02/x
  3. Step 3: Cross multiply
    117,007.43x = 161,470.31 × 66,031.02
  4. Step 4: Simplify right side
    117,007.43x = 10,662,048,938.86
  5. Step 5: Solve for x
    x = 10,662,048,938.86/117,007.43
  6. Step 6: Final answer
    x = 91,122.84

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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.