Home / 127,920.87-191,890.52-39,162.84

Finding the Fourth Proportional to 127,920.87, 191,890.52 and 39,162.84

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Solution

The fourth proportional to 127,920.87, 191,890.52 and 39,162.84 is: 58,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,920.87 : 191,890.52 = 39,162.84 : x
  2. Step 2: Convert to fraction form
    127,920.87/191,890.52 = 39,162.84/x
  3. Step 3: Cross multiply
    127,920.87x = 191,890.52 × 39,162.84
  4. Step 4: Simplify right side
    127,920.87x = 7,514,977,732.28
  5. Step 5: Solve for x
    x = 7,514,977,732.28/127,920.87
  6. Step 6: Final answer
    x = 58,747.08

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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.