Home / 198,645.37-274,189.86-130,714.72

Finding the Fourth Proportional to 198,645.37, 274,189.86 and 130,714.72

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Solution

The fourth proportional to 198,645.37, 274,189.86 and 130,714.72 is: 180,425.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,645.37 : 274,189.86 = 130,714.72 : x
  2. Step 2: Convert to fraction form
    198,645.37/274,189.86 = 130,714.72/x
  3. Step 3: Cross multiply
    198,645.37x = 274,189.86 × 130,714.72
  4. Step 4: Simplify right side
    198,645.37x = 35,840,650,776.74
  5. Step 5: Solve for x
    x = 35,840,650,776.74/198,645.37
  6. Step 6: Final answer
    x = 180,425.30

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1.5x scale

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.