Home / 139,319.12-192,258.69-75,657.37

Finding the Fourth Proportional to 139,319.12, 192,258.69 and 75,657.37

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Solution

The fourth proportional to 139,319.12, 192,258.69 and 75,657.37 is: 104,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,319.12 : 192,258.69 = 75,657.37 : x
  2. Step 2: Convert to fraction form
    139,319.12/192,258.69 = 75,657.37/x
  3. Step 3: Cross multiply
    139,319.12x = 192,258.69 × 75,657.37
  4. Step 4: Simplify right side
    139,319.12x = 14,545,786,845.05
  5. Step 5: Solve for x
    x = 14,545,786,845.05/139,319.12
  6. Step 6: Final answer
    x = 104,406.25

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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.