Home / 219,553.03-329,440.20-86,528.75

Finding the Fourth Proportional to 219,553.03, 329,440.20 and 86,528.75

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Solution

The fourth proportional to 219,553.03, 329,440.20 and 86,528.75 is: 129,836.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,553.03 : 329,440.20 = 86,528.75 : x
  2. Step 2: Convert to fraction form
    219,553.03/329,440.20 = 86,528.75/x
  3. Step 3: Cross multiply
    219,553.03x = 329,440.20 × 86,528.75
  4. Step 4: Simplify right side
    219,553.03x = 28,506,048,705.75
  5. Step 5: Solve for x
    x = 28,506,048,705.75/219,553.03
  6. Step 6: Final answer
    x = 129,836.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.