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Finding the Fourth Proportional to 139,626.96, 192,683.08 and 75,963.30

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Solution

The fourth proportional to 139,626.96, 192,683.08 and 75,963.30 is: 104,828.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,626.96 : 192,683.08 = 75,963.30 : x
  2. Step 2: Convert to fraction form
    139,626.96/192,683.08 = 75,963.30/x
  3. Step 3: Cross multiply
    139,626.96x = 192,683.08 × 75,963.30
  4. Step 4: Simplify right side
    139,626.96x = 14,636,842,610.96
  5. Step 5: Solve for x
    x = 14,636,842,610.96/139,626.96
  6. Step 6: Final answer
    x = 104,828.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.