Home / 117,253.81-161,847.12-74,812.33

Finding the Fourth Proportional to 117,253.81, 161,847.12 and 74,812.33

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Solution

The fourth proportional to 117,253.81, 161,847.12 and 74,812.33 is: 103,264.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,253.81 : 161,847.12 = 74,812.33 : x
  2. Step 2: Convert to fraction form
    117,253.81/161,847.12 = 74,812.33/x
  3. Step 3: Cross multiply
    117,253.81x = 161,847.12 × 74,812.33
  4. Step 4: Simplify right side
    117,253.81x = 12,108,160,150.99
  5. Step 5: Solve for x
    x = 12,108,160,150.99/117,253.81
  6. Step 6: Final answer
    x = 103,264.53

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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.