Home / 265,128.21-397,754.60-87,635.23

Finding the Fourth Proportional to 265,128.21, 397,754.60 and 87,635.23

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Solution

The fourth proportional to 265,128.21, 397,754.60 and 87,635.23 is: 131,473.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,128.21 : 397,754.60 = 87,635.23 : x
  2. Step 2: Convert to fraction form
    265,128.21/397,754.60 = 87,635.23/x
  3. Step 3: Cross multiply
    265,128.21x = 397,754.60 × 87,635.23
  4. Step 4: Simplify right side
    265,128.21x = 34,857,314,422.00
  5. Step 5: Solve for x
    x = 34,857,314,422.00/265,128.21
  6. Step 6: Final answer
    x = 131,473.43

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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.