Home / 117,133.28-161,633.52-69,378.92

Finding the Fourth Proportional to 117,133.28, 161,633.52 and 69,378.92

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Solution

The fourth proportional to 117,133.28, 161,633.52 and 69,378.92 is: 95,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,133.28 : 161,633.52 = 69,378.92 : x
  2. Step 2: Convert to fraction form
    117,133.28/161,633.52 = 69,378.92/x
  3. Step 3: Cross multiply
    117,133.28x = 161,633.52 × 69,378.92
  4. Step 4: Simplify right side
    117,133.28x = 11,213,959,053.40
  5. Step 5: Solve for x
    x = 11,213,959,053.40/117,133.28
  6. Step 6: Final answer
    x = 95,736.75

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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.