Home / 120,104.32-180,015.80-48,982.60

Finding the Fourth Proportional to 120,104.32, 180,015.80 and 48,982.60

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Solution

The fourth proportional to 120,104.32, 180,015.80 and 48,982.60 is: 73,416.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,104.32 : 180,015.80 = 48,982.60 : x
  2. Step 2: Convert to fraction form
    120,104.32/180,015.80 = 48,982.60/x
  3. Step 3: Cross multiply
    120,104.32x = 180,015.80 × 48,982.60
  4. Step 4: Simplify right side
    120,104.32x = 8,817,641,925.08
  5. Step 5: Solve for x
    x = 8,817,641,925.08/120,104.32
  6. Step 6: Final answer
    x = 73,416.53

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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.