Home / 123,223.96-170,048.46-66,635.20

Finding the Fourth Proportional to 123,223.96, 170,048.46 and 66,635.20

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Solution

The fourth proportional to 123,223.96, 170,048.46 and 66,635.20 is: 91,956.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,223.96 : 170,048.46 = 66,635.20 : x
  2. Step 2: Convert to fraction form
    123,223.96/170,048.46 = 66,635.20/x
  3. Step 3: Cross multiply
    123,223.96x = 170,048.46 × 66,635.20
  4. Step 4: Simplify right side
    123,223.96x = 11,331,213,141.79
  5. Step 5: Solve for x
    x = 11,331,213,141.79/123,223.96
  6. Step 6: Final answer
    x = 91,956.25

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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.