Home / 100,131.24-138,171.66-59,836.98

Finding the Fourth Proportional to 100,131.24, 138,171.66 and 59,836.98

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Solution

The fourth proportional to 100,131.24, 138,171.66 and 59,836.98 is: 82,569.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,131.24 : 138,171.66 = 59,836.98 : x
  2. Step 2: Convert to fraction form
    100,131.24/138,171.66 = 59,836.98/x
  3. Step 3: Cross multiply
    100,131.24x = 138,171.66 × 59,836.98
  4. Step 4: Simplify right side
    100,131.24x = 8,267,774,855.99
  5. Step 5: Solve for x
    x = 8,267,774,855.99/100,131.24
  6. Step 6: Final answer
    x = 82,569.38

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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.