Home / 99,859.08-137,571.13-69,589.38

Finding the Fourth Proportional to 99,859.08, 137,571.13 and 69,589.38

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Solution

The fourth proportional to 99,859.08, 137,571.13 and 69,589.38 is: 95,870.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,859.08 : 137,571.13 = 69,589.38 : x
  2. Step 2: Convert to fraction form
    99,859.08/137,571.13 = 69,589.38/x
  3. Step 3: Cross multiply
    99,859.08x = 137,571.13 × 69,589.38
  4. Step 4: Simplify right side
    99,859.08x = 9,573,489,642.60
  5. Step 5: Solve for x
    x = 9,573,489,642.60/99,859.08
  6. Step 6: Final answer
    x = 95,870.00

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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.