Home / 140,571.86-193,988.94-76,909.91

Finding the Fourth Proportional to 140,571.86, 193,988.94 and 76,909.91

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Solution

The fourth proportional to 140,571.86, 193,988.94 and 76,909.91 is: 106,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,571.86 : 193,988.94 = 76,909.91 : x
  2. Step 2: Convert to fraction form
    140,571.86/193,988.94 = 76,909.91/x
  3. Step 3: Cross multiply
    140,571.86x = 193,988.94 × 76,909.91
  4. Step 4: Simplify right side
    140,571.86x = 14,919,671,916.40
  5. Step 5: Solve for x
    x = 14,919,671,916.40/140,571.86
  6. Step 6: Final answer
    x = 106,135.55

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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.