Home / 117,252.81-161,845.74-74,811.33

Finding the Fourth Proportional to 117,252.81, 161,845.74 and 74,811.33

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Solution

The fourth proportional to 117,252.81, 161,845.74 and 74,811.33 is: 103,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252.81 : 161,845.74 = 74,811.33 : x
  2. Step 2: Convert to fraction form
    117,252.81/161,845.74 = 74,811.33/x
  3. Step 3: Cross multiply
    117,252.81x = 161,845.74 × 74,811.33
  4. Step 4: Simplify right side
    117,252.81x = 12,107,895,064.23
  5. Step 5: Solve for x
    x = 12,107,895,064.23/117,252.81
  6. Step 6: Final answer
    x = 103,263.15

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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.