Home / 127,972.06-191,994.96-39,238.64

Finding the Fourth Proportional to 127,972.06, 191,994.96 and 39,238.64

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Solution

The fourth proportional to 127,972.06, 191,994.96 and 39,238.64 is: 58,869.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,972.06 : 191,994.96 = 39,238.64 : x
  2. Step 2: Convert to fraction form
    127,972.06/191,994.96 = 39,238.64/x
  3. Step 3: Cross multiply
    127,972.06x = 191,994.96 × 39,238.64
  4. Step 4: Simplify right side
    127,972.06x = 7,533,621,117.25
  5. Step 5: Solve for x
    x = 7,533,621,117.25/127,972.06
  6. Step 6: Final answer
    x = 58,869.27

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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.