Home / 131,469.91-181,365.06-86,127.93

Finding the Fourth Proportional to 131,469.91, 181,365.06 and 86,127.93

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Solution

The fourth proportional to 131,469.91, 181,365.06 and 86,127.93 is: 118,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.91 : 181,365.06 = 86,127.93 : x
  2. Step 2: Convert to fraction form
    131,469.91/181,365.06 = 86,127.93/x
  3. Step 3: Cross multiply
    131,469.91x = 181,365.06 × 86,127.93
  4. Step 4: Simplify right side
    131,469.91x = 15,620,597,904.08
  5. Step 5: Solve for x
    x = 15,620,597,904.08/131,469.91
  6. Step 6: Final answer
    x = 118,815.00

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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.