Home / 140,875.41-194,408.63-76,344.79

Finding the Fourth Proportional to 140,875.41, 194,408.63 and 76,344.79

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Solution

The fourth proportional to 140,875.41, 194,408.63 and 76,344.79 is: 105,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,875.41 : 194,408.63 = 76,344.79 : x
  2. Step 2: Convert to fraction form
    140,875.41/194,408.63 = 76,344.79/x
  3. Step 3: Cross multiply
    140,875.41x = 194,408.63 × 76,344.79
  4. Step 4: Simplify right side
    140,875.41x = 14,842,086,031.54
  5. Step 5: Solve for x
    x = 14,842,086,031.54/140,875.41
  6. Step 6: Final answer
    x = 105,356.12

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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.