Home / 136,645.01-188,570.77-75,391.20

Finding the Fourth Proportional to 136,645.01, 188,570.77 and 75,391.20

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Solution

The fourth proportional to 136,645.01, 188,570.77 and 75,391.20 is: 104,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,645.01 : 188,570.77 = 75,391.20 : x
  2. Step 2: Convert to fraction form
    136,645.01/188,570.77 = 75,391.20/x
  3. Step 3: Cross multiply
    136,645.01x = 188,570.77 × 75,391.20
  4. Step 4: Simplify right side
    136,645.01x = 14,216,576,163.86
  5. Step 5: Solve for x
    x = 14,216,576,163.86/136,645.01
  6. Step 6: Final answer
    x = 104,040.21

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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.