Home / 128,232.81-192,404.57-69,056.69

Finding the Fourth Proportional to 128,232.81, 192,404.57 and 69,056.69

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Solution

The fourth proportional to 128,232.81, 192,404.57 and 69,056.69 is: 103,614.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,232.81 : 192,404.57 = 69,056.69 : x
  2. Step 2: Convert to fraction form
    128,232.81/192,404.57 = 69,056.69/x
  3. Step 3: Cross multiply
    128,232.81x = 192,404.57 × 69,056.69
  4. Step 4: Simplify right side
    128,232.81x = 13,286,821,437.77
  5. Step 5: Solve for x
    x = 13,286,821,437.77/128,232.81
  6. Step 6: Final answer
    x = 103,614.83

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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.