Home / 117,431,039.20-176,146,558.80-68,932,127.20

Finding the Fourth Proportional to 117,431,039.20, 176,146,558.80 and 68,932,127.20

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Solution

The fourth proportional to 117,431,039.20, 176,146,558.80 and 68,932,127.20 is: 103,398,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,431,039.20 : 176,146,558.80 = 68,932,127.20 : x
  2. Step 2: Convert to fraction form
    117,431,039.20/176,146,558.80 = 68,932,127.20/x
  3. Step 3: Cross multiply
    117,431,039.20x = 176,146,558.80 × 68,932,127.20
  4. Step 4: Simplify right side
    117,431,039.20x = 12,142,156,997,043,880
  5. Step 5: Solve for x
    x = 12,142,156,997,043,880/117,431,039.20
  6. Step 6: Final answer
    x = 103,398,190.80

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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.