Home / 103,277.43-142,442.51-74,704.28

Finding the Fourth Proportional to 103,277.43, 142,442.51 and 74,704.28

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Solution

The fourth proportional to 103,277.43, 142,442.51 and 74,704.28 is: 103,033.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,277.43 : 142,442.51 = 74,704.28 : x
  2. Step 2: Convert to fraction form
    103,277.43/142,442.51 = 74,704.28/x
  3. Step 3: Cross multiply
    103,277.43x = 142,442.51 × 74,704.28
  4. Step 4: Simplify right side
    103,277.43x = 10,641,064,065.21
  5. Step 5: Solve for x
    x = 10,641,064,065.21/103,277.43
  6. Step 6: Final answer
    x = 103,033.78

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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.