Home / 124,789.26-172,157.64-90,723.06

Finding the Fourth Proportional to 124,789.26, 172,157.64 and 90,723.06

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Solution

The fourth proportional to 124,789.26, 172,157.64 and 90,723.06 is: 125,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,789.26 : 172,157.64 = 90,723.06 : x
  2. Step 2: Convert to fraction form
    124,789.26/172,157.64 = 90,723.06/x
  3. Step 3: Cross multiply
    124,789.26x = 172,157.64 × 90,723.06
  4. Step 4: Simplify right side
    124,789.26x = 15,618,667,903.18
  5. Step 5: Solve for x
    x = 15,618,667,903.18/124,789.26
  6. Step 6: Final answer
    x = 125,160.35

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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.