Home / 139,319.26-192,258.86-75,657.51

Finding the Fourth Proportional to 139,319.26, 192,258.86 and 75,657.51

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Solution

The fourth proportional to 139,319.26, 192,258.86 and 75,657.51 is: 104,406.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,319.26 : 192,258.86 = 75,657.51 : x
  2. Step 2: Convert to fraction form
    139,319.26/192,258.86 = 75,657.51/x
  3. Step 3: Cross multiply
    139,319.26x = 192,258.86 × 75,657.51
  4. Step 4: Simplify right side
    139,319.26x = 14,545,826,244.75
  5. Step 5: Solve for x
    x = 14,545,826,244.75/139,319.26
  6. Step 6: Final answer
    x = 104,406.43

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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.