Home / 102,511.29-141,339.90-84,298.37

Finding the Fourth Proportional to 102,511.29, 141,339.90 and 84,298.37

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Solution

The fourth proportional to 102,511.29, 141,339.90 and 84,298.37 is: 116,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,511.29 : 141,339.90 = 84,298.37 : x
  2. Step 2: Convert to fraction form
    102,511.29/141,339.90 = 84,298.37/x
  3. Step 3: Cross multiply
    102,511.29x = 141,339.90 × 84,298.37
  4. Step 4: Simplify right side
    102,511.29x = 11,914,723,590.42
  5. Step 5: Solve for x
    x = 11,914,723,590.42/102,511.29
  6. Step 6: Final answer
    x = 116,228.40

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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.