Home / 131,846.40-197,712-38,350.08

Finding the Fourth Proportional to 131,846.40, 197,712 and 38,350.08

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Solution

The fourth proportional to 131,846.40, 197,712 and 38,350.08 is: 57,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,846.40 : 197,712 = 38,350.08 : x
  2. Step 2: Convert to fraction form
    131,846.40/197,712 = 38,350.08/x
  3. Step 3: Cross multiply
    131,846.40x = 197,712 × 38,350.08
  4. Step 4: Simplify right side
    131,846.40x = 7,582,271,016.96
  5. Step 5: Solve for x
    x = 7,582,271,016.96/131,846.40
  6. Step 6: Final answer
    x = 57,508.37

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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.