Home / 143,326.26-214,987.59-87,181.74

Finding the Fourth Proportional to 143,326.26, 214,987.59 and 87,181.74

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Solution

The fourth proportional to 143,326.26, 214,987.59 and 87,181.74 is: 130,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,326.26 : 214,987.59 = 87,181.74 : x
  2. Step 2: Convert to fraction form
    143,326.26/214,987.59 = 87,181.74/x
  3. Step 3: Cross multiply
    143,326.26x = 214,987.59 × 87,181.74
  4. Step 4: Simplify right side
    143,326.26x = 18,742,992,174.61
  5. Step 5: Solve for x
    x = 18,742,992,174.61/143,326.26
  6. Step 6: Final answer
    x = 130,771.52

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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.