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Finding the Fourth Proportional to 139,350.33, 192,303.77 and 75,686.76

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Solution

The fourth proportional to 139,350.33, 192,303.77 and 75,686.76 is: 104,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,350.33 : 192,303.77 = 75,686.76 : x
  2. Step 2: Convert to fraction form
    139,350.33/192,303.77 = 75,686.76/x
  3. Step 3: Cross multiply
    139,350.33x = 192,303.77 × 75,686.76
  4. Step 4: Simplify right side
    139,350.33x = 14,554,848,908.65
  5. Step 5: Solve for x
    x = 14,554,848,908.65/139,350.33
  6. Step 6: Final answer
    x = 104,447.90

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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.