Home / 139,336.08-192,284.13-75,672.51

Finding the Fourth Proportional to 139,336.08, 192,284.13 and 75,672.51

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Solution

The fourth proportional to 139,336.08, 192,284.13 and 75,672.51 is: 104,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,336.08 : 192,284.13 = 75,672.51 : x
  2. Step 2: Convert to fraction form
    139,336.08/192,284.13 = 75,672.51/x
  3. Step 3: Cross multiply
    139,336.08x = 192,284.13 × 75,672.51
  4. Step 4: Simplify right side
    139,336.08x = 14,550,622,750.27
  5. Step 5: Solve for x
    x = 14,550,622,750.27/139,336.08
  6. Step 6: Final answer
    x = 104,428.25

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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.