Home / 129,074.28-178,023.96-93,382.44

Finding the Fourth Proportional to 129,074.28, 178,023.96 and 93,382.44

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Solution

The fourth proportional to 129,074.28, 178,023.96 and 93,382.44 is: 128,796.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,074.28 : 178,023.96 = 93,382.44 : x
  2. Step 2: Convert to fraction form
    129,074.28/178,023.96 = 93,382.44/x
  3. Step 3: Cross multiply
    129,074.28x = 178,023.96 × 93,382.44
  4. Step 4: Simplify right side
    129,074.28x = 16,624,311,763.26
  5. Step 5: Solve for x
    x = 16,624,311,763.26/129,074.28
  6. Step 6: Final answer
    x = 128,796.47

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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.