Home / 130,278.96-195,414.80-55,361.52

Finding the Fourth Proportional to 130,278.96, 195,414.80 and 55,361.52

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Solution

The fourth proportional to 130,278.96, 195,414.80 and 55,361.52 is: 83,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,278.96 : 195,414.80 = 55,361.52 : x
  2. Step 2: Convert to fraction form
    130,278.96/195,414.80 = 55,361.52/x
  3. Step 3: Cross multiply
    130,278.96x = 195,414.80 × 55,361.52
  4. Step 4: Simplify right side
    130,278.96x = 10,818,460,081.69
  5. Step 5: Solve for x
    x = 10,818,460,081.69/130,278.96
  6. Step 6: Final answer
    x = 83,040.73

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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.