Home / 98,694.37-136,038.27-77,146.05

Finding the Fourth Proportional to 98,694.37, 136,038.27 and 77,146.05

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Solution

The fourth proportional to 98,694.37, 136,038.27 and 77,146.05 is: 106,336.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,694.37 : 136,038.27 = 77,146.05 : x
  2. Step 2: Convert to fraction form
    98,694.37/136,038.27 = 77,146.05/x
  3. Step 3: Cross multiply
    98,694.37x = 136,038.27 × 77,146.05
  4. Step 4: Simplify right side
    98,694.37x = 10,494,815,179.33
  5. Step 5: Solve for x
    x = 10,494,815,179.33/98,694.37
  6. Step 6: Final answer
    x = 106,336.51

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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.