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Finding the Fourth Proportional to 139,465.93, 192,463.23 and 75,803.56

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Solution

The fourth proportional to 139,465.93, 192,463.23 and 75,803.56 is: 104,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,465.93 : 192,463.23 = 75,803.56 : x
  2. Step 2: Convert to fraction form
    139,465.93/192,463.23 = 75,803.56/x
  3. Step 3: Cross multiply
    139,465.93x = 192,463.23 × 75,803.56
  4. Step 4: Simplify right side
    139,465.93x = 14,589,398,003.10
  5. Step 5: Solve for x
    x = 14,589,398,003.10/139,465.93
  6. Step 6: Final answer
    x = 104,609.05

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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.