Home / 219,817.07-329,553.35-86,796.90

Finding the Fourth Proportional to 219,817.07, 329,553.35 and 86,796.90

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Solution

The fourth proportional to 219,817.07, 329,553.35 and 86,796.90 is: 130,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,817.07 : 329,553.35 = 86,796.90 : x
  2. Step 2: Convert to fraction form
    219,817.07/329,553.35 = 86,796.90/x
  3. Step 3: Cross multiply
    219,817.07x = 329,553.35 × 86,796.90
  4. Step 4: Simplify right side
    219,817.07x = 28,604,209,381.61
  5. Step 5: Solve for x
    x = 28,604,209,381.61/219,817.07
  6. Step 6: Final answer
    x = 130,127.33

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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.