Home / 141,907.22-212,619.96-85,629.08

Finding the Fourth Proportional to 141,907.22, 212,619.96 and 85,629.08

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Solution

The fourth proportional to 141,907.22, 212,619.96 and 85,629.08 is: 128,298.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,907.22 : 212,619.96 = 85,629.08 : x
  2. Step 2: Convert to fraction form
    141,907.22/212,619.96 = 85,629.08/x
  3. Step 3: Cross multiply
    141,907.22x = 212,619.96 × 85,629.08
  4. Step 4: Simplify right side
    141,907.22x = 18,206,450,501.34
  5. Step 5: Solve for x
    x = 18,206,450,501.34/141,907.22
  6. Step 6: Final answer
    x = 128,298.27

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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.