Home / 128,084.49-192,132.41-39,341.70

Finding the Fourth Proportional to 128,084.49, 192,132.41 and 39,341.70

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Solution

The fourth proportional to 128,084.49, 192,132.41 and 39,341.70 is: 59,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,084.49 : 192,132.41 = 39,341.70 : x
  2. Step 2: Convert to fraction form
    128,084.49/192,132.41 = 39,341.70/x
  3. Step 3: Cross multiply
    128,084.49x = 192,132.41 × 39,341.70
  4. Step 4: Simplify right side
    128,084.49x = 7,558,815,437.79
  5. Step 5: Solve for x
    x = 7,558,815,437.79/128,084.49
  6. Step 6: Final answer
    x = 59,014.29

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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.