Home / 141,071.51-194,678.70-80,643.48

Finding the Fourth Proportional to 141,071.51, 194,678.70 and 80,643.48

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Solution

The fourth proportional to 141,071.51, 194,678.70 and 80,643.48 is: 111,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,071.51 : 194,678.70 = 80,643.48 : x
  2. Step 2: Convert to fraction form
    141,071.51/194,678.70 = 80,643.48/x
  3. Step 3: Cross multiply
    141,071.51x = 194,678.70 × 80,643.48
  4. Step 4: Simplify right side
    141,071.51x = 15,699,567,849.88
  5. Step 5: Solve for x
    x = 15,699,567,849.88/141,071.51
  6. Step 6: Final answer
    x = 111,288.01

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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.