Home / 120,058.14-165,690.21-66,353.64

Finding the Fourth Proportional to 120,058.14, 165,690.21 and 66,353.64

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Solution

The fourth proportional to 120,058.14, 165,690.21 and 66,353.64 is: 91,573.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,058.14 : 165,690.21 = 66,353.64 : x
  2. Step 2: Convert to fraction form
    120,058.14/165,690.21 = 66,353.64/x
  3. Step 3: Cross multiply
    120,058.14x = 165,690.21 × 66,353.64
  4. Step 4: Simplify right side
    120,058.14x = 10,994,148,545.86
  5. Step 5: Solve for x
    x = 10,994,148,545.86/120,058.14
  6. Step 6: Final answer
    x = 91,573.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.