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Finding the Fourth Proportional to 139,334.59, 192,282.29 and 75,673.45

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Solution

The fourth proportional to 139,334.59, 192,282.29 and 75,673.45 is: 104,429.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,334.59 : 192,282.29 = 75,673.45 : x
  2. Step 2: Convert to fraction form
    139,334.59/192,282.29 = 75,673.45/x
  3. Step 3: Cross multiply
    139,334.59x = 192,282.29 × 75,673.45
  4. Step 4: Simplify right side
    139,334.59x = 14,550,664,258.20
  5. Step 5: Solve for x
    x = 14,550,664,258.20/139,334.59
  6. Step 6: Final answer
    x = 104,429.66

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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.