Home / 112,126.23-154,771.69-66,818.42

Finding the Fourth Proportional to 112,126.23, 154,771.69 and 66,818.42

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Solution

The fourth proportional to 112,126.23, 154,771.69 and 66,818.42 is: 92,231.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,126.23 : 154,771.69 = 66,818.42 : x
  2. Step 2: Convert to fraction form
    112,126.23/154,771.69 = 66,818.42/x
  3. Step 3: Cross multiply
    112,126.23x = 154,771.69 × 66,818.42
  4. Step 4: Simplify right side
    112,126.23x = 10,341,599,786.53
  5. Step 5: Solve for x
    x = 10,341,599,786.53/112,126.23
  6. Step 6: Final answer
    x = 92,231.76

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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.