Home / 140,770.51-194,263.35-77,110.60

Finding the Fourth Proportional to 140,770.51, 194,263.35 and 77,110.60

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Solution

The fourth proportional to 140,770.51, 194,263.35 and 77,110.60 is: 106,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,770.51 : 194,263.35 = 77,110.60 : x
  2. Step 2: Convert to fraction form
    140,770.51/194,263.35 = 77,110.60/x
  3. Step 3: Cross multiply
    140,770.51x = 194,263.35 × 77,110.60
  4. Step 4: Simplify right side
    140,770.51x = 14,979,763,476.51
  5. Step 5: Solve for x
    x = 14,979,763,476.51/140,770.51
  6. Step 6: Final answer
    x = 106,412.65

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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.