Home / 127,830.78-191,746.17-39,084.29

Finding the Fourth Proportional to 127,830.78, 191,746.17 and 39,084.29

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Solution

The fourth proportional to 127,830.78, 191,746.17 and 39,084.29 is: 58,626.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,830.78 : 191,746.17 = 39,084.29 : x
  2. Step 2: Convert to fraction form
    127,830.78/191,746.17 = 39,084.29/x
  3. Step 3: Cross multiply
    127,830.78x = 191,746.17 × 39,084.29
  4. Step 4: Simplify right side
    127,830.78x = 7,494,262,914.67
  5. Step 5: Solve for x
    x = 7,494,262,914.67/127,830.78
  6. Step 6: Final answer
    x = 58,626.44

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Similar ratio
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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.