Home / 101,743.98-140,359.32-65,945.58

Finding the Fourth Proportional to 101,743.98, 140,359.32 and 65,945.58

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Solution

The fourth proportional to 101,743.98, 140,359.32 and 65,945.58 is: 90,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,743.98 : 140,359.32 = 65,945.58 : x
  2. Step 2: Convert to fraction form
    101,743.98/140,359.32 = 65,945.58/x
  3. Step 3: Cross multiply
    101,743.98x = 140,359.32 × 65,945.58
  4. Step 4: Simplify right side
    101,743.98x = 9,256,076,765.81
  5. Step 5: Solve for x
    x = 9,256,076,765.81/101,743.98
  6. Step 6: Final answer
    x = 90,974.20

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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.