Home / 120,230.55-165,909.02-66,514.42

Finding the Fourth Proportional to 120,230.55, 165,909.02 and 66,514.42

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Solution

The fourth proportional to 120,230.55, 165,909.02 and 66,514.42 is: 91,784.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,230.55 : 165,909.02 = 66,514.42 : x
  2. Step 2: Convert to fraction form
    120,230.55/165,909.02 = 66,514.42/x
  3. Step 3: Cross multiply
    120,230.55x = 165,909.02 × 66,514.42
  4. Step 4: Simplify right side
    120,230.55x = 11,035,341,490.72
  5. Step 5: Solve for x
    x = 11,035,341,490.72/120,230.55
  6. Step 6: Final answer
    x = 91,784.84

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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.