Home / 140,333.08-193,659.42-76,670.86

Finding the Fourth Proportional to 140,333.08, 193,659.42 and 76,670.86

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Solution

The fourth proportional to 140,333.08, 193,659.42 and 76,670.86 is: 105,805.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,333.08 : 193,659.42 = 76,670.86 : x
  2. Step 2: Convert to fraction form
    140,333.08/193,659.42 = 76,670.86/x
  3. Step 3: Cross multiply
    140,333.08x = 193,659.42 × 76,670.86
  4. Step 4: Simplify right side
    140,333.08x = 14,848,034,278.50
  5. Step 5: Solve for x
    x = 14,848,034,278.50/140,333.08
  6. Step 6: Final answer
    x = 105,805.66

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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.