Home / 127,605.40-191,435.77-38,856.58

Finding the Fourth Proportional to 127,605.40, 191,435.77 and 38,856.58

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Solution

The fourth proportional to 127,605.40, 191,435.77 and 38,856.58 is: 58,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,605.40 : 191,435.77 = 38,856.58 : x
  2. Step 2: Convert to fraction form
    127,605.40/191,435.77 = 38,856.58/x
  3. Step 3: Cross multiply
    127,605.40x = 191,435.77 × 38,856.58
  4. Step 4: Simplify right side
    127,605.40x = 7,438,539,311.87
  5. Step 5: Solve for x
    x = 7,438,539,311.87/127,605.40
  6. Step 6: Final answer
    x = 58,293.30

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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.