Home / 103,269.78-141,584.09-101,403.54

Finding the Fourth Proportional to 103,269.78, 141,584.09 and 101,403.54

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Solution

The fourth proportional to 103,269.78, 141,584.09 and 101,403.54 is: 139,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,269.78 : 141,584.09 = 101,403.54 : x
  2. Step 2: Convert to fraction form
    103,269.78/141,584.09 = 101,403.54/x
  3. Step 3: Cross multiply
    103,269.78x = 141,584.09 × 101,403.54
  4. Step 4: Simplify right side
    103,269.78x = 14,357,127,426.66
  5. Step 5: Solve for x
    x = 14,357,127,426.66/103,269.78
  6. Step 6: Final answer
    x = 139,025.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.