Home / 104,847.36-157,115.51-77,009.28

Finding the Fourth Proportional to 104,847.36, 157,115.51 and 77,009.28

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Solution

The fourth proportional to 104,847.36, 157,115.51 and 77,009.28 is: 115,399.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,847.36 : 157,115.51 = 77,009.28 : x
  2. Step 2: Convert to fraction form
    104,847.36/157,115.51 = 77,009.28/x
  3. Step 3: Cross multiply
    104,847.36x = 157,115.51 × 77,009.28
  4. Step 4: Simplify right side
    104,847.36x = 12,099,351,616.49
  5. Step 5: Solve for x
    x = 12,099,351,616.49/104,847.36
  6. Step 6: Final answer
    x = 115,399.68

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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.