Home / 112,983.58-155,912.13-61,995.07

Finding the Fourth Proportional to 112,983.58, 155,912.13 and 61,995.07

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Solution

The fourth proportional to 112,983.58, 155,912.13 and 61,995.07 is: 85,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,983.58 : 155,912.13 = 61,995.07 : x
  2. Step 2: Convert to fraction form
    112,983.58/155,912.13 = 61,995.07/x
  3. Step 3: Cross multiply
    112,983.58x = 155,912.13 × 61,995.07
  4. Step 4: Simplify right side
    112,983.58x = 9,665,783,413.20
  5. Step 5: Solve for x
    x = 9,665,783,413.20/112,983.58
  6. Step 6: Final answer
    x = 85,550.34

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1.5x scale

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.