Home / 129,075.28-178,025.34-93,383.44

Finding the Fourth Proportional to 129,075.28, 178,025.34 and 93,383.44

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Solution

The fourth proportional to 129,075.28, 178,025.34 and 93,383.44 is: 128,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,075.28 : 178,025.34 = 93,383.44 : x
  2. Step 2: Convert to fraction form
    129,075.28/178,025.34 = 93,383.44/x
  3. Step 3: Cross multiply
    129,075.28x = 178,025.34 × 93,383.44
  4. Step 4: Simplify right side
    129,075.28x = 16,624,618,656.37
  5. Step 5: Solve for x
    x = 16,624,618,656.37/129,075.28
  6. Step 6: Final answer
    x = 128,797.85

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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.