Home / 117,142.70-161,653.47-66,157.52

Finding the Fourth Proportional to 117,142.70, 161,653.47 and 66,157.52

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Solution

The fourth proportional to 117,142.70, 161,653.47 and 66,157.52 is: 91,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.70 : 161,653.47 = 66,157.52 : x
  2. Step 2: Convert to fraction form
    117,142.70/161,653.47 = 66,157.52/x
  3. Step 3: Cross multiply
    117,142.70x = 161,653.47 × 66,157.52
  4. Step 4: Simplify right side
    117,142.70x = 10,694,592,674.59
  5. Step 5: Solve for x
    x = 10,694,592,674.59/117,142.70
  6. Step 6: Final answer
    x = 91,295.43

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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.