Home / 107,401.60-160,948.80-74,531.20

Finding the Fourth Proportional to 107,401.60, 160,948.80 and 74,531.20

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Solution

The fourth proportional to 107,401.60, 160,948.80 and 74,531.20 is: 111,690.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,401.60 : 160,948.80 = 74,531.20 : x
  2. Step 2: Convert to fraction form
    107,401.60/160,948.80 = 74,531.20/x
  3. Step 3: Cross multiply
    107,401.60x = 160,948.80 × 74,531.20
  4. Step 4: Simplify right side
    107,401.60x = 11,995,707,202.56
  5. Step 5: Solve for x
    x = 11,995,707,202.56/107,401.60
  6. Step 6: Final answer
    x = 111,690.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.