Home / 92,730,571.20-139,095,856.80-81,393,163.20

Finding the Fourth Proportional to 92,730,571.20, 139,095,856.80 and 81,393,163.20

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Solution

The fourth proportional to 92,730,571.20, 139,095,856.80 and 81,393,163.20 is: 122,089,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,730,571.20 : 139,095,856.80 = 81,393,163.20 : x
  2. Step 2: Convert to fraction form
    92,730,571.20/139,095,856.80 = 81,393,163.20/x
  3. Step 3: Cross multiply
    92,730,571.20x = 139,095,856.80 × 81,393,163.20
  4. Step 4: Simplify right side
    92,730,571.20x = 11,321,451,772,966,232
  5. Step 5: Solve for x
    x = 11,321,451,772,966,232/92,730,571.20
  6. Step 6: Final answer
    x = 122,089,744.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.