Home / 113,007.11-155,971.31-74,767.41

Finding the Fourth Proportional to 113,007.11, 155,971.31 and 74,767.41

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Solution

The fourth proportional to 113,007.11, 155,971.31 and 74,767.41 is: 103,193.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,007.11 : 155,971.31 = 74,767.41 : x
  2. Step 2: Convert to fraction form
    113,007.11/155,971.31 = 74,767.41/x
  3. Step 3: Cross multiply
    113,007.11x = 155,971.31 × 74,767.41
  4. Step 4: Simplify right side
    113,007.11x = 11,661,570,509.17
  5. Step 5: Solve for x
    x = 11,661,570,509.17/113,007.11
  6. Step 6: Final answer
    x = 103,193.25

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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.