Home / 143,506.08-215,291.88-43,680.42

Finding the Fourth Proportional to 143,506.08, 215,291.88 and 43,680.42

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Solution

The fourth proportional to 143,506.08, 215,291.88 and 43,680.42 is: 65,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.08 : 215,291.88 = 43,680.42 : x
  2. Step 2: Convert to fraction form
    143,506.08/215,291.88 = 43,680.42/x
  3. Step 3: Cross multiply
    143,506.08x = 215,291.88 × 43,680.42
  4. Step 4: Simplify right side
    143,506.08x = 9,404,039,740.99
  5. Step 5: Solve for x
    x = 9,404,039,740.99/143,506.08
  6. Step 6: Final answer
    x = 65,530.60

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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.