Home / 123,720.24-170,689.37-70,004.69

Finding the Fourth Proportional to 123,720.24, 170,689.37 and 70,004.69

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Solution

The fourth proportional to 123,720.24, 170,689.37 and 70,004.69 is: 96,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,720.24 : 170,689.37 = 70,004.69 : x
  2. Step 2: Convert to fraction form
    123,720.24/170,689.37 = 70,004.69/x
  3. Step 3: Cross multiply
    123,720.24x = 170,689.37 × 70,004.69
  4. Step 4: Simplify right side
    123,720.24x = 11,949,055,229.68
  5. Step 5: Solve for x
    x = 11,949,055,229.68/123,720.24
  6. Step 6: Final answer
    x = 96,581.25

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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.