Home / 120,037.28-179,920.24-73,187.36

Finding the Fourth Proportional to 120,037.28, 179,920.24 and 73,187.36

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Solution

The fourth proportional to 120,037.28, 179,920.24 and 73,187.36 is: 109,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,037.28 : 179,920.24 = 73,187.36 : x
  2. Step 2: Convert to fraction form
    120,037.28/179,920.24 = 73,187.36/x
  3. Step 3: Cross multiply
    120,037.28x = 179,920.24 × 73,187.36
  4. Step 4: Simplify right side
    120,037.28x = 13,167,887,376.17
  5. Step 5: Solve for x
    x = 13,167,887,376.17/120,037.28
  6. Step 6: Final answer
    x = 109,698.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.