Home / 101,040.96-139,433.32-55,720.85

Finding the Fourth Proportional to 101,040.96, 139,433.32 and 55,720.85

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Solution

The fourth proportional to 101,040.96, 139,433.32 and 55,720.85 is: 76,893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,040.96 : 139,433.32 = 55,720.85 : x
  2. Step 2: Convert to fraction form
    101,040.96/139,433.32 = 55,720.85/x
  3. Step 3: Cross multiply
    101,040.96x = 139,433.32 × 55,720.85
  4. Step 4: Simplify right side
    101,040.96x = 7,769,342,830.12
  5. Step 5: Solve for x
    x = 7,769,342,830.12/101,040.96
  6. Step 6: Final answer
    x = 76,893.00

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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.