Home / 135,178.18-202,889.82-72,051.32

Finding the Fourth Proportional to 135,178.18, 202,889.82 and 72,051.32

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Solution

The fourth proportional to 135,178.18, 202,889.82 and 72,051.32 is: 108,142.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,178.18 : 202,889.82 = 72,051.32 : x
  2. Step 2: Convert to fraction form
    135,178.18/202,889.82 = 72,051.32/x
  3. Step 3: Cross multiply
    135,178.18x = 202,889.82 × 72,051.32
  4. Step 4: Simplify right side
    135,178.18x = 14,618,479,345.56
  5. Step 5: Solve for x
    x = 14,618,479,345.56/135,178.18
  6. Step 6: Final answer
    x = 108,142.30

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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.