Home / 140,673.03-194,128.80-77,010.84

Finding the Fourth Proportional to 140,673.03, 194,128.80 and 77,010.84

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Solution

The fourth proportional to 140,673.03, 194,128.80 and 77,010.84 is: 106,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,673.03 : 194,128.80 = 77,010.84 : x
  2. Step 2: Convert to fraction form
    140,673.03/194,128.80 = 77,010.84/x
  3. Step 3: Cross multiply
    140,673.03x = 194,128.80 × 77,010.84
  4. Step 4: Simplify right side
    140,673.03x = 14,950,021,956.19
  5. Step 5: Solve for x
    x = 14,950,021,956.19/140,673.03
  6. Step 6: Final answer
    x = 106,274.97

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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.