Home / 116,757.20-161,141.64-66,460.88

Finding the Fourth Proportional to 116,757.20, 161,141.64 and 66,460.88

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Solution

The fourth proportional to 116,757.20, 161,141.64 and 66,460.88 is: 91,725.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,757.20 : 161,141.64 = 66,460.88 : x
  2. Step 2: Convert to fraction form
    116,757.20/161,141.64 = 66,460.88/x
  3. Step 3: Cross multiply
    116,757.20x = 161,141.64 × 66,460.88
  4. Step 4: Simplify right side
    116,757.20x = 10,709,615,199.04
  5. Step 5: Solve for x
    x = 10,709,615,199.04/116,757.20
  6. Step 6: Final answer
    x = 91,725.52

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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.