Home / 109,520.42-151,125.50-61,774.57

Finding the Fourth Proportional to 109,520.42, 151,125.50 and 61,774.57

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Solution

The fourth proportional to 109,520.42, 151,125.50 and 61,774.57 is: 85,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,520.42 : 151,125.50 = 61,774.57 : x
  2. Step 2: Convert to fraction form
    109,520.42/151,125.50 = 61,774.57/x
  3. Step 3: Cross multiply
    109,520.42x = 151,125.50 × 61,774.57
  4. Step 4: Simplify right side
    109,520.42x = 9,335,711,714.03
  5. Step 5: Solve for x
    x = 9,335,711,714.03/109,520.42
  6. Step 6: Final answer
    x = 85,241.75

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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.