Home / 139,906.58-193,071.33-76,244.36

Finding the Fourth Proportional to 139,906.58, 193,071.33 and 76,244.36

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Solution

The fourth proportional to 139,906.58, 193,071.33 and 76,244.36 is: 105,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,906.58 : 193,071.33 = 76,244.36 : x
  2. Step 2: Convert to fraction form
    139,906.58/193,071.33 = 76,244.36/x
  3. Step 3: Cross multiply
    139,906.58x = 193,071.33 × 76,244.36
  4. Step 4: Simplify right side
    139,906.58x = 14,720,599,024.84
  5. Step 5: Solve for x
    x = 14,720,599,024.84/139,906.58
  6. Step 6: Final answer
    x = 105,217.35

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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.