Home / 141,205.70-194,864.20-77,547.60

Finding the Fourth Proportional to 141,205.70, 194,864.20 and 77,547.60

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Solution

The fourth proportional to 141,205.70, 194,864.20 and 77,547.60 is: 107,015.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,205.70 : 194,864.20 = 77,547.60 : x
  2. Step 2: Convert to fraction form
    141,205.70/194,864.20 = 77,547.60/x
  3. Step 3: Cross multiply
    141,205.70x = 194,864.20 × 77,547.60
  4. Step 4: Simplify right side
    141,205.70x = 15,111,250,842.05
  5. Step 5: Solve for x
    x = 15,111,250,842.05/141,205.70
  6. Step 6: Final answer
    x = 107,015.87

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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.