Home / 127,856.27-191,784.41-39,109.03

Finding the Fourth Proportional to 127,856.27, 191,784.41 and 39,109.03

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Solution

The fourth proportional to 127,856.27, 191,784.41 and 39,109.03 is: 58,663.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,856.27 : 191,784.41 = 39,109.03 : x
  2. Step 2: Convert to fraction form
    127,856.27/191,784.41 = 39,109.03/x
  3. Step 3: Cross multiply
    127,856.27x = 191,784.41 × 39,109.03
  4. Step 4: Simplify right side
    127,856.27x = 7,500,501,715.87
  5. Step 5: Solve for x
    x = 7,500,501,715.87/127,856.27
  6. Step 6: Final answer
    x = 58,663.54

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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.