Home / 123,739.20-170,760-70,023.24

Finding the Fourth Proportional to 123,739.20, 170,760 and 70,023.24

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Solution

The fourth proportional to 123,739.20, 170,760 and 70,023.24 is: 96,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,739.20 : 170,760 = 70,023.24 : x
  2. Step 2: Convert to fraction form
    123,739.20/170,760 = 70,023.24/x
  3. Step 3: Cross multiply
    123,739.20x = 170,760 × 70,023.24
  4. Step 4: Simplify right side
    123,739.20x = 11,957,168,462.40
  5. Step 5: Solve for x
    x = 11,957,168,462.40/123,739.20
  6. Step 6: Final answer
    x = 96,632.02

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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.