Home / 126,026.31-189,043.07-47,125.47

Finding the Fourth Proportional to 126,026.31, 189,043.07 and 47,125.47

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Solution

The fourth proportional to 126,026.31, 189,043.07 and 47,125.47 is: 70,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,026.31 : 189,043.07 = 47,125.47 : x
  2. Step 2: Convert to fraction form
    126,026.31/189,043.07 = 47,125.47/x
  3. Step 3: Cross multiply
    126,026.31x = 189,043.07 × 47,125.47
  4. Step 4: Simplify right side
    126,026.31x = 8,908,743,288.37
  5. Step 5: Solve for x
    x = 8,908,743,288.37/126,026.31
  6. Step 6: Final answer
    x = 70,689.55

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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.