Home / 158,718.63-218,997.50-91,611.75

Finding the Fourth Proportional to 158,718.63, 218,997.50 and 91,611.75

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Solution

The fourth proportional to 158,718.63, 218,997.50 and 91,611.75 is: 126,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,718.63 : 218,997.50 = 91,611.75 : x
  2. Step 2: Convert to fraction form
    158,718.63/218,997.50 = 91,611.75/x
  3. Step 3: Cross multiply
    158,718.63x = 218,997.50 × 91,611.75
  4. Step 4: Simplify right side
    158,718.63x = 20,062,743,762.57
  5. Step 5: Solve for x
    x = 20,062,743,762.57/158,718.63
  6. Step 6: Final answer
    x = 126,404.47

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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.