Home / 102,511.11-141,339.65-84,298.18

Finding the Fourth Proportional to 102,511.11, 141,339.65 and 84,298.18

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Solution

The fourth proportional to 102,511.11, 141,339.65 and 84,298.18 is: 116,228.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,511.11 : 141,339.65 = 84,298.18 : x
  2. Step 2: Convert to fraction form
    102,511.11/141,339.65 = 84,298.18/x
  3. Step 3: Cross multiply
    102,511.11x = 141,339.65 × 84,298.18
  4. Step 4: Simplify right side
    102,511.11x = 11,914,674,835.35
  5. Step 5: Solve for x
    x = 11,914,674,835.35/102,511.11
  6. Step 6: Final answer
    x = 116,228.13

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1.5x scale

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.