Home / 128,119.04-192,295.74-64,982.75

Finding the Fourth Proportional to 128,119.04, 192,295.74 and 64,982.75

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Solution

The fourth proportional to 128,119.04, 192,295.74 and 64,982.75 is: 97,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,119.04 : 192,295.74 = 64,982.75 : x
  2. Step 2: Convert to fraction form
    128,119.04/192,295.74 = 64,982.75/x
  3. Step 3: Cross multiply
    128,119.04x = 192,295.74 × 64,982.75
  4. Step 4: Simplify right side
    128,119.04x = 12,495,905,037.01
  5. Step 5: Solve for x
    x = 12,495,905,037.01/128,119.04
  6. Step 6: Final answer
    x = 97,533.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.