Home / 135,917.42-203,881.53-42,423.17

Finding the Fourth Proportional to 135,917.42, 203,881.53 and 42,423.17

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Solution

The fourth proportional to 135,917.42, 203,881.53 and 42,423.17 is: 63,636.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,917.42 : 203,881.53 = 42,423.17 : x
  2. Step 2: Convert to fraction form
    135,917.42/203,881.53 = 42,423.17/x
  3. Step 3: Cross multiply
    135,917.42x = 203,881.53 × 42,423.17
  4. Step 4: Simplify right side
    135,917.42x = 8,649,300,807.05
  5. Step 5: Solve for x
    x = 8,649,300,807.05/135,917.42
  6. Step 6: Final answer
    x = 63,636.44

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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.