Home / 112,123.91-154,768.49-66,816.11

Finding the Fourth Proportional to 112,123.91, 154,768.49 and 66,816.11

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Solution

The fourth proportional to 112,123.91, 154,768.49 and 66,816.11 is: 92,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,123.91 : 154,768.49 = 66,816.11 : x
  2. Step 2: Convert to fraction form
    112,123.91/154,768.49 = 66,816.11/x
  3. Step 3: Cross multiply
    112,123.91x = 154,768.49 × 66,816.11
  4. Step 4: Simplify right side
    112,123.91x = 10,341,027,845.57
  5. Step 5: Solve for x
    x = 10,341,027,845.57/112,123.91
  6. Step 6: Final answer
    x = 92,228.57

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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.