Home / 135,865.86-203,788.98-42,369.18

Finding the Fourth Proportional to 135,865.86, 203,788.98 and 42,369.18

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Solution

The fourth proportional to 135,865.86, 203,788.98 and 42,369.18 is: 63,550.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,865.86 : 203,788.98 = 42,369.18 : x
  2. Step 2: Convert to fraction form
    135,865.86/203,788.98 = 42,369.18/x
  3. Step 3: Cross multiply
    135,865.86x = 203,788.98 × 42,369.18
  4. Step 4: Simplify right side
    135,865.86x = 8,634,371,975.64
  5. Step 5: Solve for x
    x = 8,634,371,975.64/135,865.86
  6. Step 6: Final answer
    x = 63,550.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.