Home / 127,919.90-191,880.30-39,173.01

Finding the Fourth Proportional to 127,919.90, 191,880.30 and 39,173.01

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Solution

The fourth proportional to 127,919.90, 191,880.30 and 39,173.01 is: 58,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,919.90 : 191,880.30 = 39,173.01 : x
  2. Step 2: Convert to fraction form
    127,919.90/191,880.30 = 39,173.01/x
  3. Step 3: Cross multiply
    127,919.90x = 191,880.30 × 39,173.01
  4. Step 4: Simplify right side
    127,919.90x = 7,516,528,910.70
  5. Step 5: Solve for x
    x = 7,516,528,910.70/127,919.90
  6. Step 6: Final answer
    x = 58,759.66

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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.