Home / 111,186.94-153,463.19-86,939.93

Finding the Fourth Proportional to 111,186.94, 153,463.19 and 86,939.93

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Solution

The fourth proportional to 111,186.94, 153,463.19 and 86,939.93 is: 119,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,186.94 : 153,463.19 = 86,939.93 : x
  2. Step 2: Convert to fraction form
    111,186.94/153,463.19 = 86,939.93/x
  3. Step 3: Cross multiply
    111,186.94x = 153,463.19 × 86,939.93
  4. Step 4: Simplify right side
    111,186.94x = 13,342,078,996.18
  5. Step 5: Solve for x
    x = 13,342,078,996.18/111,186.94
  6. Step 6: Final answer
    x = 119,996.82

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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.