Home / 130,238.96-195,319.56-55,358.78

Finding the Fourth Proportional to 130,238.96, 195,319.56 and 55,358.78

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Solution

The fourth proportional to 130,238.96, 195,319.56 and 55,358.78 is: 83,021.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,238.96 : 195,319.56 = 55,358.78 : x
  2. Step 2: Convert to fraction form
    130,238.96/195,319.56 = 55,358.78/x
  3. Step 3: Cross multiply
    130,238.96x = 195,319.56 × 55,358.78
  4. Step 4: Simplify right side
    130,238.96x = 10,812,652,551.74
  5. Step 5: Solve for x
    x = 10,812,652,551.74/130,238.96
  6. Step 6: Final answer
    x = 83,021.64

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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.