Home / 120,165.60-180,002.40-67,464.48

Finding the Fourth Proportional to 120,165.60, 180,002.40 and 67,464.48

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Solution

The fourth proportional to 120,165.60, 180,002.40 and 67,464.48 is: 101,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,165.60 : 180,002.40 = 67,464.48 : x
  2. Step 2: Convert to fraction form
    120,165.60/180,002.40 = 67,464.48/x
  3. Step 3: Cross multiply
    120,165.60x = 180,002.40 × 67,464.48
  4. Step 4: Simplify right side
    120,165.60x = 12,143,768,314.75
  5. Step 5: Solve for x
    x = 12,143,768,314.75/120,165.60
  6. Step 6: Final answer
    x = 101,058.61

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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.