Home / 215,544.12-297,519.83-139,065.36

Finding the Fourth Proportional to 215,544.12, 297,519.83 and 139,065.36

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Solution

The fourth proportional to 215,544.12, 297,519.83 and 139,065.36 is: 191,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,544.12 : 297,519.83 = 139,065.36 : x
  2. Step 2: Convert to fraction form
    215,544.12/297,519.83 = 139,065.36/x
  3. Step 3: Cross multiply
    215,544.12x = 297,519.83 × 139,065.36
  4. Step 4: Simplify right side
    215,544.12x = 41,374,701,570.76
  5. Step 5: Solve for x
    x = 41,374,701,570.76/215,544.12
  6. Step 6: Final answer
    x = 191,954.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.