Home / 132,123.10-197,856.60-105,879.10

Finding the Fourth Proportional to 132,123.10, 197,856.60 and 105,879.10

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Solution

The fourth proportional to 132,123.10, 197,856.60 and 105,879.10 is: 158,555.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,123.10 : 197,856.60 = 105,879.10 : x
  2. Step 2: Convert to fraction form
    132,123.10/197,856.60 = 105,879.10/x
  3. Step 3: Cross multiply
    132,123.10x = 197,856.60 × 105,879.10
  4. Step 4: Simplify right side
    132,123.10x = 20,948,878,737.06
  5. Step 5: Solve for x
    x = 20,948,878,737.06/132,123.10
  6. Step 6: Final answer
    x = 158,555.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.