Home / 135,860.86-203,781.48-42,364.18

Finding the Fourth Proportional to 135,860.86, 203,781.48 and 42,364.18

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Solution

The fourth proportional to 135,860.86, 203,781.48 and 42,364.18 is: 63,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,860.86 : 203,781.48 = 42,364.18 : x
  2. Step 2: Convert to fraction form
    135,860.86/203,781.48 = 42,364.18/x
  3. Step 3: Cross multiply
    135,860.86x = 203,781.48 × 42,364.18
  4. Step 4: Simplify right side
    135,860.86x = 8,633,035,299.39
  5. Step 5: Solve for x
    x = 8,633,035,299.39/135,860.86
  6. Step 6: Final answer
    x = 63,543.21

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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.