Home / 130,655.13-195,991.80-51,769.13

Finding the Fourth Proportional to 130,655.13, 195,991.80 and 51,769.13

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Solution

The fourth proportional to 130,655.13, 195,991.80 and 51,769.13 is: 77,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,655.13 : 195,991.80 = 51,769.13 : x
  2. Step 2: Convert to fraction form
    130,655.13/195,991.80 = 51,769.13/x
  3. Step 3: Cross multiply
    130,655.13x = 195,991.80 × 51,769.13
  4. Step 4: Simplify right side
    130,655.13x = 10,146,324,090.24
  5. Step 5: Solve for x
    x = 10,146,324,090.24/130,655.13
  6. Step 6: Final answer
    x = 77,657.30

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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.