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Finding the Fourth Proportional to 139,168.74, 192,053.25 and 75,506.39

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Solution

The fourth proportional to 139,168.74, 192,053.25 and 75,506.39 is: 104,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,168.74 : 192,053.25 = 75,506.39 : x
  2. Step 2: Convert to fraction form
    139,168.74/192,053.25 = 75,506.39/x
  3. Step 3: Cross multiply
    139,168.74x = 192,053.25 × 75,506.39
  4. Step 4: Simplify right side
    139,168.74x = 14,501,247,595.27
  5. Step 5: Solve for x
    x = 14,501,247,595.27/139,168.74
  6. Step 6: Final answer
    x = 104,199.03

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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.