Home / 85,675.06-127,899.37-74,468.04

Finding the Fourth Proportional to 85,675.06, 127,899.37 and 74,468.04

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Solution

The fourth proportional to 85,675.06, 127,899.37 and 74,468.04 is: 111,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,675.06 : 127,899.37 = 74,468.04 : x
  2. Step 2: Convert to fraction form
    85,675.06/127,899.37 = 74,468.04/x
  3. Step 3: Cross multiply
    85,675.06x = 127,899.37 × 74,468.04
  4. Step 4: Simplify right side
    85,675.06x = 9,524,415,401.13
  5. Step 5: Solve for x
    x = 9,524,415,401.13/85,675.06
  6. Step 6: Final answer
    x = 111,169.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.