Home / 191,005.73-263,586.35-103,790.06

Finding the Fourth Proportional to 191,005.73, 263,586.35 and 103,790.06

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Solution

The fourth proportional to 191,005.73, 263,586.35 and 103,790.06 is: 143,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,005.73 : 263,586.35 = 103,790.06 : x
  2. Step 2: Convert to fraction form
    191,005.73/263,586.35 = 103,790.06/x
  3. Step 3: Cross multiply
    191,005.73x = 263,586.35 × 103,790.06
  4. Step 4: Simplify right side
    191,005.73x = 27,357,643,011.67
  5. Step 5: Solve for x
    x = 27,357,643,011.67/191,005.73
  6. Step 6: Final answer
    x = 143,229.44

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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.