Home / 98,152.27-135,415.63-64,180.64

Finding the Fourth Proportional to 98,152.27, 135,415.63 and 64,180.64

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Solution

The fourth proportional to 98,152.27, 135,415.63 and 64,180.64 is: 88,546.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,152.27 : 135,415.63 = 64,180.64 : x
  2. Step 2: Convert to fraction form
    98,152.27/135,415.63 = 64,180.64/x
  3. Step 3: Cross multiply
    98,152.27x = 135,415.63 × 64,180.64
  4. Step 4: Simplify right side
    98,152.27x = 8,691,060,961.87
  5. Step 5: Solve for x
    x = 8,691,060,961.87/98,152.27
  6. Step 6: Final answer
    x = 88,546.72

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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.