Home / 140,690.58-194,152.98-77,028.36

Finding the Fourth Proportional to 140,690.58, 194,152.98 and 77,028.36

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Solution

The fourth proportional to 140,690.58, 194,152.98 and 77,028.36 is: 106,299.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,690.58 : 194,152.98 = 77,028.36 : x
  2. Step 2: Convert to fraction form
    140,690.58/194,152.98 = 77,028.36/x
  3. Step 3: Cross multiply
    140,690.58x = 194,152.98 × 77,028.36
  4. Step 4: Simplify right side
    140,690.58x = 14,955,285,638.51
  5. Step 5: Solve for x
    x = 14,955,285,638.51/140,690.58
  6. Step 6: Final answer
    x = 106,299.13

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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.