Home / 127,965.20-191,947.80-39,232.40

Finding the Fourth Proportional to 127,965.20, 191,947.80 and 39,232.40

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Solution

The fourth proportional to 127,965.20, 191,947.80 and 39,232.40 is: 58,848.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,965.20 : 191,947.80 = 39,232.40 : x
  2. Step 2: Convert to fraction form
    127,965.20/191,947.80 = 39,232.40/x
  3. Step 3: Cross multiply
    127,965.20x = 191,947.80 × 39,232.40
  4. Step 4: Simplify right side
    127,965.20x = 7,530,572,868.72
  5. Step 5: Solve for x
    x = 7,530,572,868.72/127,965.20
  6. Step 6: Final answer
    x = 58,848.60

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Similar ratio
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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.