Home / 195,438.40-293,128.80-55,211.20

Finding the Fourth Proportional to 195,438.40, 293,128.80 and 55,211.20

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Solution

The fourth proportional to 195,438.40, 293,128.80 and 55,211.20 is: 82,808.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,438.40 : 293,128.80 = 55,211.20 : x
  2. Step 2: Convert to fraction form
    195,438.40/293,128.80 = 55,211.20/x
  3. Step 3: Cross multiply
    195,438.40x = 293,128.80 × 55,211.20
  4. Step 4: Simplify right side
    195,438.40x = 16,183,992,802.56
  5. Step 5: Solve for x
    x = 16,183,992,802.56/195,438.40
  6. Step 6: Final answer
    x = 82,808.66

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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.