Home / 112,922.76-155,764.98-74,682.12

Finding the Fourth Proportional to 112,922.76, 155,764.98 and 74,682.12

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Solution

The fourth proportional to 112,922.76, 155,764.98 and 74,682.12 is: 103,016.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,922.76 : 155,764.98 = 74,682.12 : x
  2. Step 2: Convert to fraction form
    112,922.76/155,764.98 = 74,682.12/x
  3. Step 3: Cross multiply
    112,922.76x = 155,764.98 × 74,682.12
  4. Step 4: Simplify right side
    112,922.76x = 11,632,858,928.16
  5. Step 5: Solve for x
    x = 11,632,858,928.16/112,922.76
  6. Step 6: Final answer
    x = 103,016.07

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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.