Home / 75,126.67-112,802.75-71,515.37

Finding the Fourth Proportional to 75,126.67, 112,802.75 and 71,515.37

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Solution

The fourth proportional to 75,126.67, 112,802.75 and 71,515.37 is: 107,380.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,126.67 : 112,802.75 = 71,515.37 : x
  2. Step 2: Convert to fraction form
    75,126.67/112,802.75 = 71,515.37/x
  3. Step 3: Cross multiply
    75,126.67x = 112,802.75 × 71,515.37
  4. Step 4: Simplify right side
    75,126.67x = 8,067,130,403.27
  5. Step 5: Solve for x
    x = 8,067,130,403.27/75,126.67
  6. Step 6: Final answer
    x = 107,380.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.