Home / 109,186.12-150,679.78-61,441.16

Finding the Fourth Proportional to 109,186.12, 150,679.78 and 61,441.16

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Solution

The fourth proportional to 109,186.12, 150,679.78 and 61,441.16 is: 84,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,186.12 : 150,679.78 = 61,441.16 : x
  2. Step 2: Convert to fraction form
    109,186.12/150,679.78 = 61,441.16/x
  3. Step 3: Cross multiply
    109,186.12x = 150,679.78 × 61,441.16
  4. Step 4: Simplify right side
    109,186.12x = 9,257,940,471.74
  5. Step 5: Solve for x
    x = 9,257,940,471.74/109,186.12
  6. Step 6: Final answer
    x = 84,790.45

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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.