Home / 117,255.15-161,804.43-74,809.13

Finding the Fourth Proportional to 117,255.15, 161,804.43 and 74,809.13

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Solution

The fourth proportional to 117,255.15, 161,804.43 and 74,809.13 is: 103,231.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,255.15 : 161,804.43 = 74,809.13 : x
  2. Step 2: Convert to fraction form
    117,255.15/161,804.43 = 74,809.13/x
  3. Step 3: Cross multiply
    117,255.15x = 161,804.43 × 74,809.13
  4. Step 4: Simplify right side
    117,255.15x = 12,104,447,829.42
  5. Step 5: Solve for x
    x = 12,104,447,829.42/117,255.15
  6. Step 6: Final answer
    x = 103,231.69

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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.