Home / 99,515.96-137,186.94-75,601.12

Finding the Fourth Proportional to 99,515.96, 137,186.94 and 75,601.12

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Solution

The fourth proportional to 99,515.96, 137,186.94 and 75,601.12 is: 104,219.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.96 : 137,186.94 = 75,601.12 : x
  2. Step 2: Convert to fraction form
    99,515.96/137,186.94 = 75,601.12/x
  3. Step 3: Cross multiply
    99,515.96x = 137,186.94 × 75,601.12
  4. Step 4: Simplify right side
    99,515.96x = 10,371,486,313.37
  5. Step 5: Solve for x
    x = 10,371,486,313.37/99,515.96
  6. Step 6: Final answer
    x = 104,219.33

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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.