Home / 120,445.30-180,595.05-53,873.02

Finding the Fourth Proportional to 120,445.30, 180,595.05 and 53,873.02

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Solution

The fourth proportional to 120,445.30, 180,595.05 and 53,873.02 is: 80,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,445.30 : 180,595.05 = 53,873.02 : x
  2. Step 2: Convert to fraction form
    120,445.30/180,595.05 = 53,873.02/x
  3. Step 3: Cross multiply
    120,445.30x = 180,595.05 × 53,873.02
  4. Step 4: Simplify right side
    120,445.30x = 9,729,200,740.55
  5. Step 5: Solve for x
    x = 9,729,200,740.55/120,445.30
  6. Step 6: Final answer
    x = 80,776.92

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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.