Home / 103,270.43-142,460.48-67,481.39

Finding the Fourth Proportional to 103,270.43, 142,460.48 and 67,481.39

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Solution

The fourth proportional to 103,270.43, 142,460.48 and 67,481.39 is: 93,089.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,270.43 : 142,460.48 = 67,481.39 : x
  2. Step 2: Convert to fraction form
    103,270.43/142,460.48 = 67,481.39/x
  3. Step 3: Cross multiply
    103,270.43x = 142,460.48 × 67,481.39
  4. Step 4: Simplify right side
    103,270.43x = 9,613,430,666.87
  5. Step 5: Solve for x
    x = 9,613,430,666.87/103,270.43
  6. Step 6: Final answer
    x = 93,089.87

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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.