Home / 102,215.70-141,056.60-56,893.02

Finding the Fourth Proportional to 102,215.70, 141,056.60 and 56,893.02

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Solution

The fourth proportional to 102,215.70, 141,056.60 and 56,893.02 is: 78,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,215.70 : 141,056.60 = 56,893.02 : x
  2. Step 2: Convert to fraction form
    102,215.70/141,056.60 = 56,893.02/x
  3. Step 3: Cross multiply
    102,215.70x = 141,056.60 × 56,893.02
  4. Step 4: Simplify right side
    102,215.70x = 8,025,135,964.93
  5. Step 5: Solve for x
    x = 8,025,135,964.93/102,215.70
  6. Step 6: Final answer
    x = 78,511.77

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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.