Home / 109,770.91-151,475.48-66,744.42

Finding the Fourth Proportional to 109,770.91, 151,475.48 and 66,744.42

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Solution

The fourth proportional to 109,770.91, 151,475.48 and 66,744.42 is: 92,102.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,770.91 : 151,475.48 = 66,744.42 : x
  2. Step 2: Convert to fraction form
    109,770.91/151,475.48 = 66,744.42/x
  3. Step 3: Cross multiply
    109,770.91x = 151,475.48 × 66,744.42
  4. Step 4: Simplify right side
    109,770.91x = 10,110,143,056.82
  5. Step 5: Solve for x
    x = 10,110,143,056.82/109,770.91
  6. Step 6: Final answer
    x = 92,102.21

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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.