Home / 112,800.21-155,664.32-67,480.08

Finding the Fourth Proportional to 112,800.21, 155,664.32 and 67,480.08

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Solution

The fourth proportional to 112,800.21, 155,664.32 and 67,480.08 is: 93,122.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,800.21 : 155,664.32 = 67,480.08 : x
  2. Step 2: Convert to fraction form
    112,800.21/155,664.32 = 67,480.08/x
  3. Step 3: Cross multiply
    112,800.21x = 155,664.32 × 67,480.08
  4. Step 4: Simplify right side
    112,800.21x = 10,504,240,429.35
  5. Step 5: Solve for x
    x = 10,504,240,429.35/112,800.21
  6. Step 6: Final answer
    x = 93,122.53

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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.