Home / 120,520.53-180,707.87-53,948.25

Finding the Fourth Proportional to 120,520.53, 180,707.87 and 53,948.25

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Solution

The fourth proportional to 120,520.53, 180,707.87 and 53,948.25 is: 80,889.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,520.53 : 180,707.87 = 53,948.25 : x
  2. Step 2: Convert to fraction form
    120,520.53/180,707.87 = 53,948.25/x
  3. Step 3: Cross multiply
    120,520.53x = 180,707.87 × 53,948.25
  4. Step 4: Simplify right side
    120,520.53x = 9,748,873,482.60
  5. Step 5: Solve for x
    x = 9,748,873,482.60/120,520.53
  6. Step 6: Final answer
    x = 80,889.73

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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.