Home / 139,739,186.75-192,840,867.65-81,036,705.96

Finding the Fourth Proportional to 139,739,186.75, 192,840,867.65 and 81,036,705.96

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Solution

The fourth proportional to 139,739,186.75, 192,840,867.65 and 81,036,705.96 is: 111,831,112.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,739,186.75 : 192,840,867.65 = 81,036,705.96 : x
  2. Step 2: Convert to fraction form
    139,739,186.75/192,840,867.65 = 81,036,705.96/x
  3. Step 3: Cross multiply
    139,739,186.75x = 192,840,867.65 × 81,036,705.96
  4. Step 4: Simplify right side
    139,739,186.75x = 15,627,188,689,026,916
  5. Step 5: Solve for x
    x = 15,627,188,689,026,916/139,739,186.75
  6. Step 6: Final answer
    x = 111,831,112.32

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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.