Home / 216,212.95-324,210.55-72,067.72

Finding the Fourth Proportional to 216,212.95, 324,210.55 and 72,067.72

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Solution

The fourth proportional to 216,212.95, 324,210.55 and 72,067.72 is: 108,065.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,212.95 : 324,210.55 = 72,067.72 : x
  2. Step 2: Convert to fraction form
    216,212.95/324,210.55 = 72,067.72/x
  3. Step 3: Cross multiply
    216,212.95x = 324,210.55 × 72,067.72
  4. Step 4: Simplify right side
    216,212.95x = 23,365,115,138.45
  5. Step 5: Solve for x
    x = 23,365,115,138.45/216,212.95
  6. Step 6: Final answer
    x = 108,065.29

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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.