Home / 130,350.10-179,867.92-72,992.58

Finding the Fourth Proportional to 130,350.10, 179,867.92 and 72,992.58

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Solution

The fourth proportional to 130,350.10, 179,867.92 and 72,992.58 is: 100,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,350.10 : 179,867.92 = 72,992.58 : x
  2. Step 2: Convert to fraction form
    130,350.10/179,867.92 = 72,992.58/x
  3. Step 3: Cross multiply
    130,350.10x = 179,867.92 × 72,992.58
  4. Step 4: Simplify right side
    130,350.10x = 13,129,023,540.03
  5. Step 5: Solve for x
    x = 13,129,023,540.03/130,350.10
  6. Step 6: Final answer
    x = 100,721.24

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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.