Home / 140,632.86-194,072.65-76,102.05

Finding the Fourth Proportional to 140,632.86, 194,072.65 and 76,102.05

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Solution

The fourth proportional to 140,632.86, 194,072.65 and 76,102.05 is: 105,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,632.86 : 194,072.65 = 76,102.05 : x
  2. Step 2: Convert to fraction form
    140,632.86/194,072.65 = 76,102.05/x
  3. Step 3: Cross multiply
    140,632.86x = 194,072.65 × 76,102.05
  4. Step 4: Simplify right side
    140,632.86x = 14,769,326,513.93
  5. Step 5: Solve for x
    x = 14,769,326,513.93/140,632.86
  6. Step 6: Final answer
    x = 105,020.45

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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.