Home / 120,451.12-180,606.65-45,577.05

Finding the Fourth Proportional to 120,451.12, 180,606.65 and 45,577.05

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Solution

The fourth proportional to 120,451.12, 180,606.65 and 45,577.05 is: 68,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,451.12 : 180,606.65 = 45,577.05 : x
  2. Step 2: Convert to fraction form
    120,451.12/180,606.65 = 45,577.05/x
  3. Step 3: Cross multiply
    120,451.12x = 180,606.65 × 45,577.05
  4. Step 4: Simplify right side
    120,451.12x = 8,231,518,089.50
  5. Step 5: Solve for x
    x = 8,231,518,089.50/120,451.12
  6. Step 6: Final answer
    x = 68,339.07

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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.