Home / 126,616.16-189,952.32-47,731.08

Finding the Fourth Proportional to 126,616.16, 189,952.32 and 47,731.08

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Solution

The fourth proportional to 126,616.16, 189,952.32 and 47,731.08 is: 71,607.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,616.16 : 189,952.32 = 47,731.08 : x
  2. Step 2: Convert to fraction form
    126,616.16/189,952.32 = 47,731.08/x
  3. Step 3: Cross multiply
    126,616.16x = 189,952.32 × 47,731.08
  4. Step 4: Simplify right side
    126,616.16x = 9,066,629,382.11
  5. Step 5: Solve for x
    x = 9,066,629,382.11/126,616.16
  6. Step 6: Final answer
    x = 71,607.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.