Home / 128,334.40-192,529.07-38,384.17

Finding the Fourth Proportional to 128,334.40, 192,529.07 and 38,384.17

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Solution

The fourth proportional to 128,334.40, 192,529.07 and 38,384.17 is: 57,584.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,334.40 : 192,529.07 = 38,384.17 : x
  2. Step 2: Convert to fraction form
    128,334.40/192,529.07 = 38,384.17/x
  3. Step 3: Cross multiply
    128,334.40x = 192,529.07 × 38,384.17
  4. Step 4: Simplify right side
    128,334.40x = 7,390,068,023.52
  5. Step 5: Solve for x
    x = 7,390,068,023.52/128,334.40
  6. Step 6: Final answer
    x = 57,584.47

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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.