Home / 130,765.52-195,976.12-51,836.72

Finding the Fourth Proportional to 130,765.52, 195,976.12 and 51,836.72

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Solution

The fourth proportional to 130,765.52, 195,976.12 and 51,836.72 is: 77,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,765.52 : 195,976.12 = 51,836.72 : x
  2. Step 2: Convert to fraction form
    130,765.52/195,976.12 = 51,836.72/x
  3. Step 3: Cross multiply
    130,765.52x = 195,976.12 × 51,836.72
  4. Step 4: Simplify right side
    130,765.52x = 10,158,759,259.13
  5. Step 5: Solve for x
    x = 10,158,759,259.13/130,765.52
  6. Step 6: Final answer
    x = 77,686.83

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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.