Home / 143,054.37-214,319.88-67,013.28

Finding the Fourth Proportional to 143,054.37, 214,319.88 and 67,013.28

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Solution

The fourth proportional to 143,054.37, 214,319.88 and 67,013.28 is: 100,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,054.37 : 214,319.88 = 67,013.28 : x
  2. Step 2: Convert to fraction form
    143,054.37/214,319.88 = 67,013.28/x
  3. Step 3: Cross multiply
    143,054.37x = 214,319.88 × 67,013.28
  4. Step 4: Simplify right side
    143,054.37x = 14,362,278,128.01
  5. Step 5: Solve for x
    x = 14,362,278,128.01/143,054.37
  6. Step 6: Final answer
    x = 100,397.34

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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.