Home / 120,305.44-180,339.12-57,014.32

Finding the Fourth Proportional to 120,305.44, 180,339.12 and 57,014.32

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Solution

The fourth proportional to 120,305.44, 180,339.12 and 57,014.32 is: 85,465.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,305.44 : 180,339.12 = 57,014.32 : x
  2. Step 2: Convert to fraction form
    120,305.44/180,339.12 = 57,014.32/x
  3. Step 3: Cross multiply
    120,305.44x = 180,339.12 × 57,014.32
  4. Step 4: Simplify right side
    120,305.44x = 10,281,912,296.20
  5. Step 5: Solve for x
    x = 10,281,912,296.20/120,305.44
  6. Step 6: Final answer
    x = 85,465.07

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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.