Home / 131,607.36-181,604.16-77,894.64

Finding the Fourth Proportional to 131,607.36, 181,604.16 and 77,894.64

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Solution

The fourth proportional to 131,607.36, 181,604.16 and 77,894.64 is: 107,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,607.36 : 181,604.16 = 77,894.64 : x
  2. Step 2: Convert to fraction form
    131,607.36/181,604.16 = 77,894.64/x
  3. Step 3: Cross multiply
    131,607.36x = 181,604.16 × 77,894.64
  4. Step 4: Simplify right side
    131,607.36x = 14,145,990,665.70
  5. Step 5: Solve for x
    x = 14,145,990,665.70/131,607.36
  6. Step 6: Final answer
    x = 107,486.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.