Home / 130,359.30-195,429.60-68,029.80

Finding the Fourth Proportional to 130,359.30, 195,429.60 and 68,029.80

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Solution

The fourth proportional to 130,359.30, 195,429.60 and 68,029.80 is: 101,987.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,359.30 : 195,429.60 = 68,029.80 : x
  2. Step 2: Convert to fraction form
    130,359.30/195,429.60 = 68,029.80/x
  3. Step 3: Cross multiply
    130,359.30x = 195,429.60 × 68,029.80
  4. Step 4: Simplify right side
    130,359.30x = 13,295,036,602.08
  5. Step 5: Solve for x
    x = 13,295,036,602.08/130,359.30
  6. Step 6: Final answer
    x = 101,987.63

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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.