Home / 141,220.70-194,883.80-76,689.36

Finding the Fourth Proportional to 141,220.70, 194,883.80 and 76,689.36

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Solution

The fourth proportional to 141,220.70, 194,883.80 and 76,689.36 is: 105,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,220.70 : 194,883.80 = 76,689.36 : x
  2. Step 2: Convert to fraction form
    141,220.70/194,883.80 = 76,689.36/x
  3. Step 3: Cross multiply
    141,220.70x = 194,883.80 × 76,689.36
  4. Step 4: Simplify right side
    141,220.70x = 14,945,513,896.37
  5. Step 5: Solve for x
    x = 14,945,513,896.37/141,220.70
  6. Step 6: Final answer
    x = 105,830.90

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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.