Home / 140,741.10-194,215.52-77,066.60

Finding the Fourth Proportional to 140,741.10, 194,215.52 and 77,066.60

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Solution

The fourth proportional to 140,741.10, 194,215.52 and 77,066.60 is: 106,347.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,741.10 : 194,215.52 = 77,066.60 : x
  2. Step 2: Convert to fraction form
    140,741.10/194,215.52 = 77,066.60/x
  3. Step 3: Cross multiply
    140,741.10x = 194,215.52 × 77,066.60
  4. Step 4: Simplify right side
    140,741.10x = 14,967,529,793.63
  5. Step 5: Solve for x
    x = 14,967,529,793.63/140,741.10
  6. Step 6: Final answer
    x = 106,347.97

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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.