Home / 100,364.06-138,502.19-57,922.59

Finding the Fourth Proportional to 100,364.06, 138,502.19 and 57,922.59

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Solution

The fourth proportional to 100,364.06, 138,502.19 and 57,922.59 is: 79,933.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,364.06 : 138,502.19 = 57,922.59 : x
  2. Step 2: Convert to fraction form
    100,364.06/138,502.19 = 57,922.59/x
  3. Step 3: Cross multiply
    100,364.06x = 138,502.19 × 57,922.59
  4. Step 4: Simplify right side
    100,364.06x = 8,022,405,275.86
  5. Step 5: Solve for x
    x = 8,022,405,275.86/100,364.06
  6. Step 6: Final answer
    x = 79,933.05

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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.