Home / 123,643.74-170,627.18-69,939.24

Finding the Fourth Proportional to 123,643.74, 170,627.18 and 69,939.24

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Solution

The fourth proportional to 123,643.74, 170,627.18 and 69,939.24 is: 96,515.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,643.74 : 170,627.18 = 69,939.24 : x
  2. Step 2: Convert to fraction form
    123,643.74/170,627.18 = 69,939.24/x
  3. Step 3: Cross multiply
    123,643.74x = 170,627.18 × 69,939.24
  4. Step 4: Simplify right side
    123,643.74x = 11,933,535,292.54
  5. Step 5: Solve for x
    x = 11,933,535,292.54/123,643.74
  6. Step 6: Final answer
    x = 96,515.48

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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.