Home / 140,769.22-194,261.60-77,108.08

Finding the Fourth Proportional to 140,769.22, 194,261.60 and 77,108.08

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Solution

The fourth proportional to 140,769.22, 194,261.60 and 77,108.08 is: 106,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,769.22 : 194,261.60 = 77,108.08 : x
  2. Step 2: Convert to fraction form
    140,769.22/194,261.60 = 77,108.08/x
  3. Step 3: Cross multiply
    140,769.22x = 194,261.60 × 77,108.08
  4. Step 4: Simplify right side
    140,769.22x = 14,979,138,700.84
  5. Step 5: Solve for x
    x = 14,979,138,700.84/140,769.22
  6. Step 6: Final answer
    x = 106,409.19

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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.