Home / 112,136.20-168,438.30-94,640.20

Finding the Fourth Proportional to 112,136.20, 168,438.30 and 94,640.20

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Solution

The fourth proportional to 112,136.20, 168,438.30 and 94,640.20 is: 142,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,136.20 : 168,438.30 = 94,640.20 : x
  2. Step 2: Convert to fraction form
    112,136.20/168,438.30 = 94,640.20/x
  3. Step 3: Cross multiply
    112,136.20x = 168,438.30 × 94,640.20
  4. Step 4: Simplify right side
    112,136.20x = 15,941,034,399.66
  5. Step 5: Solve for x
    x = 15,941,034,399.66/112,136.20
  6. Step 6: Final answer
    x = 142,157.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.