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Finding the Fourth Proportional to 139,261.29, 192,180.36 and 75,599.11

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Solution

The fourth proportional to 139,261.29, 192,180.36 and 75,599.11 is: 104,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.29 : 192,180.36 = 75,599.11 : x
  2. Step 2: Convert to fraction form
    139,261.29/192,180.36 = 75,599.11/x
  3. Step 3: Cross multiply
    139,261.29x = 192,180.36 × 75,599.11
  4. Step 4: Simplify right side
    139,261.29x = 14,528,664,175.48
  5. Step 5: Solve for x
    x = 14,528,664,175.48/139,261.29
  6. Step 6: Final answer
    x = 104,326.65

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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.