Home / 209,186.76-313,682.12-75,974.16

Finding the Fourth Proportional to 209,186.76, 313,682.12 and 75,974.16

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Solution

The fourth proportional to 209,186.76, 313,682.12 and 75,974.16 is: 113,925.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,186.76 : 313,682.12 = 75,974.16 : x
  2. Step 2: Convert to fraction form
    209,186.76/313,682.12 = 75,974.16/x
  3. Step 3: Cross multiply
    209,186.76x = 313,682.12 × 75,974.16
  4. Step 4: Simplify right side
    209,186.76x = 23,831,735,574.02
  5. Step 5: Solve for x
    x = 23,831,735,574.02/209,186.76
  6. Step 6: Final answer
    x = 113,925.64

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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.