Home / 130,001.60-195,021.30-55,121.60

Finding the Fourth Proportional to 130,001.60, 195,021.30 and 55,121.60

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Solution

The fourth proportional to 130,001.60, 195,021.30 and 55,121.60 is: 82,690.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,001.60 : 195,021.30 = 55,121.60 : x
  2. Step 2: Convert to fraction form
    130,001.60/195,021.30 = 55,121.60/x
  3. Step 3: Cross multiply
    130,001.60x = 195,021.30 × 55,121.60
  4. Step 4: Simplify right side
    130,001.60x = 10,749,886,090.08
  5. Step 5: Solve for x
    x = 10,749,886,090.08/130,001.60
  6. Step 6: Final answer
    x = 82,690.41

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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.