Home / 126,694.72-189,980.56-47,815.08

Finding the Fourth Proportional to 126,694.72, 189,980.56 and 47,815.08

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Solution

The fourth proportional to 126,694.72, 189,980.56 and 47,815.08 is: 71,699.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,694.72 : 189,980.56 = 47,815.08 : x
  2. Step 2: Convert to fraction form
    126,694.72/189,980.56 = 47,815.08/x
  3. Step 3: Cross multiply
    126,694.72x = 189,980.56 × 47,815.08
  4. Step 4: Simplify right side
    126,694.72x = 9,083,935,674.84
  5. Step 5: Solve for x
    x = 9,083,935,674.84/126,694.72
  6. Step 6: Final answer
    x = 71,699.40

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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.