Home / 130,301.94-179,785.67-79,314.12

Finding the Fourth Proportional to 130,301.94, 179,785.67 and 79,314.12

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Solution

The fourth proportional to 130,301.94, 179,785.67 and 79,314.12 is: 109,434.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,301.94 : 179,785.67 = 79,314.12 : x
  2. Step 2: Convert to fraction form
    130,301.94/179,785.67 = 79,314.12/x
  3. Step 3: Cross multiply
    130,301.94x = 179,785.67 × 79,314.12
  4. Step 4: Simplify right side
    130,301.94x = 14,259,541,808.09
  5. Step 5: Solve for x
    x = 14,259,541,808.09/130,301.94
  6. Step 6: Final answer
    x = 109,434.61

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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.