Home / 103,494.18-142,837.44-63,231.21

Finding the Fourth Proportional to 103,494.18, 142,837.44 and 63,231.21

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Solution

The fourth proportional to 103,494.18, 142,837.44 and 63,231.21 is: 87,268.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,494.18 : 142,837.44 = 63,231.21 : x
  2. Step 2: Convert to fraction form
    103,494.18/142,837.44 = 63,231.21/x
  3. Step 3: Cross multiply
    103,494.18x = 142,837.44 × 63,231.21
  4. Step 4: Simplify right side
    103,494.18x = 9,031,784,164.50
  5. Step 5: Solve for x
    x = 9,031,784,164.50/103,494.18
  6. Step 6: Final answer
    x = 87,268.52

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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.