Home / 209,315.60-313,973.40-111,011.60

Finding the Fourth Proportional to 209,315.60, 313,973.40 and 111,011.60

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Solution

The fourth proportional to 209,315.60, 313,973.40 and 111,011.60 is: 166,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,315.60 : 313,973.40 = 111,011.60 : x
  2. Step 2: Convert to fraction form
    209,315.60/313,973.40 = 111,011.60/x
  3. Step 3: Cross multiply
    209,315.60x = 313,973.40 × 111,011.60
  4. Step 4: Simplify right side
    209,315.60x = 34,854,689,491.44
  5. Step 5: Solve for x
    x = 34,854,689,491.44/209,315.60
  6. Step 6: Final answer
    x = 166,517.40

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1.5x scale

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.