Home / 136,777.56-188,784.48-80,207.16

Finding the Fourth Proportional to 136,777.56, 188,784.48 and 80,207.16

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Solution

The fourth proportional to 136,777.56, 188,784.48 and 80,207.16 is: 110,704.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,777.56 : 188,784.48 = 80,207.16 : x
  2. Step 2: Convert to fraction form
    136,777.56/188,784.48 = 80,207.16/x
  3. Step 3: Cross multiply
    136,777.56x = 188,784.48 × 80,207.16
  4. Step 4: Simplify right side
    136,777.56x = 15,141,866,992.88
  5. Step 5: Solve for x
    x = 15,141,866,992.88/136,777.56
  6. Step 6: Final answer
    x = 110,704.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.