Home / 180,435.32-248,993.09-99,855.31

Finding the Fourth Proportional to 180,435.32, 248,993.09 and 99,855.31

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Solution

The fourth proportional to 180,435.32, 248,993.09 and 99,855.31 is: 137,796.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,435.32 : 248,993.09 = 99,855.31 : x
  2. Step 2: Convert to fraction form
    180,435.32/248,993.09 = 99,855.31/x
  3. Step 3: Cross multiply
    180,435.32x = 248,993.09 × 99,855.31
  4. Step 4: Simplify right side
    180,435.32x = 24,863,282,189.81
  5. Step 5: Solve for x
    x = 24,863,282,189.81/180,435.32
  6. Step 6: Final answer
    x = 137,796.09

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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.