Home / 115,600.32-173,388.06-78,399.18

Finding the Fourth Proportional to 115,600.32, 173,388.06 and 78,399.18

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Solution

The fourth proportional to 115,600.32, 173,388.06 and 78,399.18 is: 117,590.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,600.32 : 173,388.06 = 78,399.18 : x
  2. Step 2: Convert to fraction form
    115,600.32/173,388.06 = 78,399.18/x
  3. Step 3: Cross multiply
    115,600.32x = 173,388.06 × 78,399.18
  4. Step 4: Simplify right side
    115,600.32x = 13,593,481,725.79
  5. Step 5: Solve for x
    x = 13,593,481,725.79/115,600.32
  6. Step 6: Final answer
    x = 117,590.35

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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.