Home / 100,776.57-151,064.55-48,124.50

Finding the Fourth Proportional to 100,776.57, 151,064.55 and 48,124.50

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Solution

The fourth proportional to 100,776.57, 151,064.55 and 48,124.50 is: 72,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,776.57 : 151,064.55 = 48,124.50 : x
  2. Step 2: Convert to fraction form
    100,776.57/151,064.55 = 48,124.50/x
  3. Step 3: Cross multiply
    100,776.57x = 151,064.55 × 48,124.50
  4. Step 4: Simplify right side
    100,776.57x = 7,269,905,936.48
  5. Step 5: Solve for x
    x = 7,269,905,936.48/100,776.57
  6. Step 6: Final answer
    x = 72,138.85

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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.