Home / 127,946.40-191,919.60-71,959.20

Finding the Fourth Proportional to 127,946.40, 191,919.60 and 71,959.20

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Solution

The fourth proportional to 127,946.40, 191,919.60 and 71,959.20 is: 107,938.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,946.40 : 191,919.60 = 71,959.20 : x
  2. Step 2: Convert to fraction form
    127,946.40/191,919.60 = 71,959.20/x
  3. Step 3: Cross multiply
    127,946.40x = 191,919.60 × 71,959.20
  4. Step 4: Simplify right side
    127,946.40x = 13,810,380,880.32
  5. Step 5: Solve for x
    x = 13,810,380,880.32/127,946.40
  6. Step 6: Final answer
    x = 107,938.80

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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.