Home / 143,815.16-215,742.18-135,067.16

Finding the Fourth Proportional to 143,815.16, 215,742.18 and 135,067.16

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Solution

The fourth proportional to 143,815.16, 215,742.18 and 135,067.16 is: 202,619.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,815.16 : 215,742.18 = 135,067.16 : x
  2. Step 2: Convert to fraction form
    143,815.16/215,742.18 = 135,067.16/x
  3. Step 3: Cross multiply
    143,815.16x = 215,742.18 × 135,067.16
  4. Step 4: Simplify right side
    143,815.16x = 29,139,683,544.81
  5. Step 5: Solve for x
    x = 29,139,683,544.81/143,815.16
  6. Step 6: Final answer
    x = 202,619.00

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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.