Home / 130,019.60-195,048.30-55,139.60

Finding the Fourth Proportional to 130,019.60, 195,048.30 and 55,139.60

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Solution

The fourth proportional to 130,019.60, 195,048.30 and 55,139.60 is: 82,717.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,019.60 : 195,048.30 = 55,139.60 : x
  2. Step 2: Convert to fraction form
    130,019.60/195,048.30 = 55,139.60/x
  3. Step 3: Cross multiply
    130,019.60x = 195,048.30 × 55,139.60
  4. Step 4: Simplify right side
    130,019.60x = 10,754,885,242.68
  5. Step 5: Solve for x
    x = 10,754,885,242.68/130,019.60
  6. Step 6: Final answer
    x = 82,717.42

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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.