Home / 351,525.10-526,971.90-126,832.72

Finding the Fourth Proportional to 351,525.10, 526,971.90 and 126,832.72

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Solution

The fourth proportional to 351,525.10, 526,971.90 and 126,832.72 is: 190,135.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,525.10 : 526,971.90 = 126,832.72 : x
  2. Step 2: Convert to fraction form
    351,525.10/526,971.90 = 126,832.72/x
  3. Step 3: Cross multiply
    351,525.10x = 526,971.90 × 126,832.72
  4. Step 4: Simplify right side
    351,525.10x = 66,837,279,440.57
  5. Step 5: Solve for x
    x = 66,837,279,440.57/351,525.10
  6. Step 6: Final answer
    x = 190,135.16

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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.