Home / 102,511.25-141,339.84-84,298.32

Finding the Fourth Proportional to 102,511.25, 141,339.84 and 84,298.32

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Solution

The fourth proportional to 102,511.25, 141,339.84 and 84,298.32 is: 116,228.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,511.25 : 141,339.84 = 84,298.32 : x
  2. Step 2: Convert to fraction form
    102,511.25/141,339.84 = 84,298.32/x
  3. Step 3: Cross multiply
    102,511.25x = 141,339.84 × 84,298.32
  4. Step 4: Simplify right side
    102,511.25x = 11,914,711,247.05
  5. Step 5: Solve for x
    x = 11,914,711,247.05/102,511.25
  6. Step 6: Final answer
    x = 116,228.33

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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.