Home / 105,814.67-146,001.43-61,076.75

Finding the Fourth Proportional to 105,814.67, 146,001.43 and 61,076.75

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Solution

The fourth proportional to 105,814.67, 146,001.43 and 61,076.75 is: 84,272.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,814.67 : 146,001.43 = 61,076.75 : x
  2. Step 2: Convert to fraction form
    105,814.67/146,001.43 = 61,076.75/x
  3. Step 3: Cross multiply
    105,814.67x = 146,001.43 × 61,076.75
  4. Step 4: Simplify right side
    105,814.67x = 8,917,292,839.75
  5. Step 5: Solve for x
    x = 8,917,292,839.75/105,814.67
  6. Step 6: Final answer
    x = 84,272.75

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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.