Home / 100,525.43-151,494.15-90,542.69

Finding the Fourth Proportional to 100,525.43, 151,494.15 and 90,542.69

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Solution

The fourth proportional to 100,525.43, 151,494.15 and 90,542.69 is: 136,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,525.43 : 151,494.15 = 90,542.69 : x
  2. Step 2: Convert to fraction form
    100,525.43/151,494.15 = 90,542.69/x
  3. Step 3: Cross multiply
    100,525.43x = 151,494.15 × 90,542.69
  4. Step 4: Simplify right side
    100,525.43x = 13,716,687,860.26
  5. Step 5: Solve for x
    x = 13,716,687,860.26/100,525.43
  6. Step 6: Final answer
    x = 136,449.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.