Home / 201,218.12-301,602.37-87,234.35

Finding the Fourth Proportional to 201,218.12, 301,602.37 and 87,234.35

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Solution

The fourth proportional to 201,218.12, 301,602.37 and 87,234.35 is: 130,754.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,218.12 : 301,602.37 = 87,234.35 : x
  2. Step 2: Convert to fraction form
    201,218.12/301,602.37 = 87,234.35/x
  3. Step 3: Cross multiply
    201,218.12x = 301,602.37 × 87,234.35
  4. Step 4: Simplify right side
    201,218.12x = 26,310,086,705.41
  5. Step 5: Solve for x
    x = 26,310,086,705.41/201,218.12
  6. Step 6: Final answer
    x = 130,754.06

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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.