Home / 130,016.64-179,369.53-79,021.15

Finding the Fourth Proportional to 130,016.64, 179,369.53 and 79,021.15

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Solution

The fourth proportional to 130,016.64, 179,369.53 and 79,021.15 is: 109,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,016.64 : 179,369.53 = 79,021.15 : x
  2. Step 2: Convert to fraction form
    130,016.64/179,369.53 = 79,021.15/x
  3. Step 3: Cross multiply
    130,016.64x = 179,369.53 × 79,021.15
  4. Step 4: Simplify right side
    130,016.64x = 14,173,986,535.56
  5. Step 5: Solve for x
    x = 14,173,986,535.56/130,016.64
  6. Step 6: Final answer
    x = 109,016.71

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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.