Home / 130,189.51-179,589.11-75,735.53

Finding the Fourth Proportional to 130,189.51, 179,589.11 and 75,735.53

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Solution

The fourth proportional to 130,189.51, 179,589.11 and 75,735.53 is: 104,472.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,189.51 : 179,589.11 = 75,735.53 : x
  2. Step 2: Convert to fraction form
    130,189.51/179,589.11 = 75,735.53/x
  3. Step 3: Cross multiply
    130,189.51x = 179,589.11 × 75,735.53
  4. Step 4: Simplify right side
    130,189.51x = 13,601,275,530.13
  5. Step 5: Solve for x
    x = 13,601,275,530.13/130,189.51
  6. Step 6: Final answer
    x = 104,472.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.