Home / 100,360.91-138,504.18-57,922.17

Finding the Fourth Proportional to 100,360.91, 138,504.18 and 57,922.17

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Solution

The fourth proportional to 100,360.91, 138,504.18 and 57,922.17 is: 79,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,360.91 : 138,504.18 = 57,922.17 : x
  2. Step 2: Convert to fraction form
    100,360.91/138,504.18 = 57,922.17/x
  3. Step 3: Cross multiply
    100,360.91x = 138,504.18 × 57,922.17
  4. Step 4: Simplify right side
    100,360.91x = 8,022,462,659.67
  5. Step 5: Solve for x
    x = 8,022,462,659.67/100,360.91
  6. Step 6: Final answer
    x = 79,936.13

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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.