Home / 123,339.44-170,209.38-72,353.01

Finding the Fourth Proportional to 123,339.44, 170,209.38 and 72,353.01

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Solution

The fourth proportional to 123,339.44, 170,209.38 and 72,353.01 is: 99,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,339.44 : 170,209.38 = 72,353.01 : x
  2. Step 2: Convert to fraction form
    123,339.44/170,209.38 = 72,353.01/x
  3. Step 3: Cross multiply
    123,339.44x = 170,209.38 × 72,353.01
  4. Step 4: Simplify right side
    123,339.44x = 12,315,160,611.47
  5. Step 5: Solve for x
    x = 12,315,160,611.47/123,339.44
  6. Step 6: Final answer
    x = 99,847.71

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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.