Home / 112,933.76-155,855.04-68,236.16

Finding the Fourth Proportional to 112,933.76, 155,855.04 and 68,236.16

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Solution

The fourth proportional to 112,933.76, 155,855.04 and 68,236.16 is: 94,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,933.76 : 155,855.04 = 68,236.16 : x
  2. Step 2: Convert to fraction form
    112,933.76/155,855.04 = 68,236.16/x
  3. Step 3: Cross multiply
    112,933.76x = 155,855.04 × 68,236.16
  4. Step 4: Simplify right side
    112,933.76x = 10,634,949,446.25
  5. Step 5: Solve for x
    x = 10,634,949,446.25/112,933.76
  6. Step 6: Final answer
    x = 94,169.80

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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.