Home / 210,115.31-289,958.73-114,621.98

Finding the Fourth Proportional to 210,115.31, 289,958.73 and 114,621.98

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Solution

The fourth proportional to 210,115.31, 289,958.73 and 114,621.98 is: 158,178.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,115.31 : 289,958.73 = 114,621.98 : x
  2. Step 2: Convert to fraction form
    210,115.31/289,958.73 = 114,621.98/x
  3. Step 3: Cross multiply
    210,115.31x = 289,958.73 × 114,621.98
  4. Step 4: Simplify right side
    210,115.31x = 33,235,643,750.89
  5. Step 5: Solve for x
    x = 33,235,643,750.89/210,115.31
  6. Step 6: Final answer
    x = 158,178.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.