Home / 112,089.92-154,671.53-66,761.51

Finding the Fourth Proportional to 112,089.92, 154,671.53 and 66,761.51

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Solution

The fourth proportional to 112,089.92, 154,671.53 and 66,761.51 is: 92,123.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,089.92 : 154,671.53 = 66,761.51 : x
  2. Step 2: Convert to fraction form
    112,089.92/154,671.53 = 66,761.51/x
  3. Step 3: Cross multiply
    112,089.92x = 154,671.53 × 66,761.51
  4. Step 4: Simplify right side
    112,089.92x = 10,326,103,789.65
  5. Step 5: Solve for x
    x = 10,326,103,789.65/112,089.92
  6. Step 6: Final answer
    x = 92,123.40

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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.