Home / 112,975.11-155,907.32-61,992.90

Finding the Fourth Proportional to 112,975.11, 155,907.32 and 61,992.90

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Solution

The fourth proportional to 112,975.11, 155,907.32 and 61,992.90 is: 85,551.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,975.11 : 155,907.32 = 61,992.90 : x
  2. Step 2: Convert to fraction form
    112,975.11/155,907.32 = 61,992.90/x
  3. Step 3: Cross multiply
    112,975.11x = 155,907.32 × 61,992.90
  4. Step 4: Simplify right side
    112,975.11x = 9,665,146,588.06
  5. Step 5: Solve for x
    x = 9,665,146,588.06/112,975.11
  6. Step 6: Final answer
    x = 85,551.11

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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.