Home / 112,983.72-155,912.28-61,995.18

Finding the Fourth Proportional to 112,983.72, 155,912.28 and 61,995.18

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Solution

The fourth proportional to 112,983.72, 155,912.28 and 61,995.18 is: 85,550.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,983.72 : 155,912.28 = 61,995.18 : x
  2. Step 2: Convert to fraction form
    112,983.72/155,912.28 = 61,995.18/x
  3. Step 3: Cross multiply
    112,983.72x = 155,912.28 × 61,995.18
  4. Step 4: Simplify right side
    112,983.72x = 9,665,809,862.81
  5. Step 5: Solve for x
    x = 9,665,809,862.81/112,983.72
  6. Step 6: Final answer
    x = 85,550.47

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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.