Home / 126,431.06-189,674.31-47,545.29

Finding the Fourth Proportional to 126,431.06, 189,674.31 and 47,545.29

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Solution

The fourth proportional to 126,431.06, 189,674.31 and 47,545.29 is: 71,328.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,431.06 : 189,674.31 = 47,545.29 : x
  2. Step 2: Convert to fraction form
    126,431.06/189,674.31 = 47,545.29/x
  3. Step 3: Cross multiply
    126,431.06x = 189,674.31 × 47,545.29
  4. Step 4: Simplify right side
    126,431.06x = 9,018,120,074.50
  5. Step 5: Solve for x
    x = 9,018,120,074.50/126,431.06
  6. Step 6: Final answer
    x = 71,328.36

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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.