Home / 120,346.40-180,550.92-45,467.12

Finding the Fourth Proportional to 120,346.40, 180,550.92 and 45,467.12

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Solution

The fourth proportional to 120,346.40, 180,550.92 and 45,467.12 is: 68,212.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,346.40 : 180,550.92 = 45,467.12 : x
  2. Step 2: Convert to fraction form
    120,346.40/180,550.92 = 45,467.12/x
  3. Step 3: Cross multiply
    120,346.40x = 180,550.92 × 45,467.12
  4. Step 4: Simplify right side
    120,346.40x = 8,209,130,345.75
  5. Step 5: Solve for x
    x = 8,209,130,345.75/120,346.40
  6. Step 6: Final answer
    x = 68,212.51

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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.