Home / 130,118.32-179,559.42-72,754.12

Finding the Fourth Proportional to 130,118.32, 179,559.42 and 72,754.12

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Solution

The fourth proportional to 130,118.32, 179,559.42 and 72,754.12 is: 100,398.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,118.32 : 179,559.42 = 72,754.12 : x
  2. Step 2: Convert to fraction form
    130,118.32/179,559.42 = 72,754.12/x
  3. Step 3: Cross multiply
    130,118.32x = 179,559.42 × 72,754.12
  4. Step 4: Simplify right side
    130,118.32x = 13,063,687,589.81
  5. Step 5: Solve for x
    x = 13,063,687,589.81/130,118.32
  6. Step 6: Final answer
    x = 100,398.53

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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.