Home / 235,948.68-353,919.24-86,188.32

Finding the Fourth Proportional to 235,948.68, 353,919.24 and 86,188.32

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Solution

The fourth proportional to 235,948.68, 353,919.24 and 86,188.32 is: 129,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,948.68 : 353,919.24 = 86,188.32 : x
  2. Step 2: Convert to fraction form
    235,948.68/353,919.24 = 86,188.32/x
  3. Step 3: Cross multiply
    235,948.68x = 353,919.24 × 86,188.32
  4. Step 4: Simplify right side
    235,948.68x = 30,503,704,711.28
  5. Step 5: Solve for x
    x = 30,503,704,711.28/235,948.68
  6. Step 6: Final answer
    x = 129,281.10

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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.