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Finding the Fourth Proportional to 139,364.57, 192,327.27 and 75,706.67

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Solution

The fourth proportional to 139,364.57, 192,327.27 and 75,706.67 is: 104,477.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,364.57 : 192,327.27 = 75,706.67 : x
  2. Step 2: Convert to fraction form
    139,364.57/192,327.27 = 75,706.67/x
  3. Step 3: Cross multiply
    139,364.57x = 192,327.27 × 75,706.67
  4. Step 4: Simplify right side
    139,364.57x = 14,560,457,161.89
  5. Step 5: Solve for x
    x = 14,560,457,161.89/139,364.57
  6. Step 6: Final answer
    x = 104,477.47

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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.