Home / 99,708.11-137,597.62-54,387.06

Finding the Fourth Proportional to 99,708.11, 137,597.62 and 54,387.06

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Solution

The fourth proportional to 99,708.11, 137,597.62 and 54,387.06 is: 75,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,708.11 : 137,597.62 = 54,387.06 : x
  2. Step 2: Convert to fraction form
    99,708.11/137,597.62 = 54,387.06/x
  3. Step 3: Cross multiply
    99,708.11x = 137,597.62 × 54,387.06
  4. Step 4: Simplify right side
    99,708.11x = 7,483,530,014.80
  5. Step 5: Solve for x
    x = 7,483,530,014.80/99,708.11
  6. Step 6: Final answer
    x = 75,054.38

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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.