Home / 120,311.80-180,432.66-36,068.60

Finding the Fourth Proportional to 120,311.80, 180,432.66 and 36,068.60

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Solution

The fourth proportional to 120,311.80, 180,432.66 and 36,068.60 is: 54,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,311.80 : 180,432.66 = 36,068.60 : x
  2. Step 2: Convert to fraction form
    120,311.80/180,432.66 = 36,068.60/x
  3. Step 3: Cross multiply
    120,311.80x = 180,432.66 × 36,068.60
  4. Step 4: Simplify right side
    120,311.80x = 6,507,953,440.48
  5. Step 5: Solve for x
    x = 6,507,953,440.48/120,311.80
  6. Step 6: Final answer
    x = 54,092.40

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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.