Home / 143,318.76-214,980.30-54,577.18

Finding the Fourth Proportional to 143,318.76, 214,980.30 and 54,577.18

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Solution

The fourth proportional to 143,318.76, 214,980.30 and 54,577.18 is: 81,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,318.76 : 214,980.30 = 54,577.18 : x
  2. Step 2: Convert to fraction form
    143,318.76/214,980.30 = 54,577.18/x
  3. Step 3: Cross multiply
    143,318.76x = 214,980.30 × 54,577.18
  4. Step 4: Simplify right side
    143,318.76x = 11,733,018,529.55
  5. Step 5: Solve for x
    x = 11,733,018,529.55/143,318.76
  6. Step 6: Final answer
    x = 81,866.59

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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.