Home / 210,109.78-289,955.61-114,620.02

Finding the Fourth Proportional to 210,109.78, 289,955.61 and 114,620.02

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Solution

The fourth proportional to 210,109.78, 289,955.61 and 114,620.02 is: 158,177.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,109.78 : 289,955.61 = 114,620.02 : x
  2. Step 2: Convert to fraction form
    210,109.78/289,955.61 = 114,620.02/x
  3. Step 3: Cross multiply
    210,109.78x = 289,955.61 × 114,620.02
  4. Step 4: Simplify right side
    210,109.78x = 33,234,717,817.31
  5. Step 5: Solve for x
    x = 33,234,717,817.31/210,109.78
  6. Step 6: Final answer
    x = 158,177.87

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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.