Home / 103,692.10-155,653.35-64,293.70

Finding the Fourth Proportional to 103,692.10, 155,653.35 and 64,293.70

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Solution

The fourth proportional to 103,692.10, 155,653.35 and 64,293.70 is: 96,511.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,692.10 : 155,653.35 = 64,293.70 : x
  2. Step 2: Convert to fraction form
    103,692.10/155,653.35 = 64,293.70/x
  3. Step 3: Cross multiply
    103,692.10x = 155,653.35 × 64,293.70
  4. Step 4: Simplify right side
    103,692.10x = 10,007,529,788.90
  5. Step 5: Solve for x
    x = 10,007,529,788.90/103,692.10
  6. Step 6: Final answer
    x = 96,511.98

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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.