Home / 134,790.30-202,228.65-90,467.10

Finding the Fourth Proportional to 134,790.30, 202,228.65 and 90,467.10

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Solution

The fourth proportional to 134,790.30, 202,228.65 and 90,467.10 is: 135,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,790.30 : 202,228.65 = 90,467.10 : x
  2. Step 2: Convert to fraction form
    134,790.30/202,228.65 = 90,467.10/x
  3. Step 3: Cross multiply
    134,790.30x = 202,228.65 × 90,467.10
  4. Step 4: Simplify right side
    134,790.30x = 18,295,039,502.42
  5. Step 5: Solve for x
    x = 18,295,039,502.42/134,790.30
  6. Step 6: Final answer
    x = 135,729.64

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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.