Home / 130,530.80-195,666.60-60,287.60

Finding the Fourth Proportional to 130,530.80, 195,666.60 and 60,287.60

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Solution

The fourth proportional to 130,530.80, 195,666.60 and 60,287.60 is: 90,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,530.80 : 195,666.60 = 60,287.60 : x
  2. Step 2: Convert to fraction form
    130,530.80/195,666.60 = 60,287.60/x
  3. Step 3: Cross multiply
    130,530.80x = 195,666.60 × 60,287.60
  4. Step 4: Simplify right side
    130,530.80x = 11,796,269,714.16
  5. Step 5: Solve for x
    x = 11,796,269,714.16/130,530.80
  6. Step 6: Final answer
    x = 90,371.54

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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.