Home / 127,941.60-191,912.40-72,645.60

Finding the Fourth Proportional to 127,941.60, 191,912.40 and 72,645.60

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Solution

The fourth proportional to 127,941.60, 191,912.40 and 72,645.60 is: 108,968.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,941.60 : 191,912.40 = 72,645.60 : x
  2. Step 2: Convert to fraction form
    127,941.60/191,912.40 = 72,645.60/x
  3. Step 3: Cross multiply
    127,941.60x = 191,912.40 × 72,645.60
  4. Step 4: Simplify right side
    127,941.60x = 13,941,591,445.44
  5. Step 5: Solve for x
    x = 13,941,591,445.44/127,941.60
  6. Step 6: Final answer
    x = 108,968.40

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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.