Home / 131,422.75-181,363.41-71,806.75

Finding the Fourth Proportional to 131,422.75, 181,363.41 and 71,806.75

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Solution

The fourth proportional to 131,422.75, 181,363.41 and 71,806.75 is: 99,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,422.75 : 181,363.41 = 71,806.75 : x
  2. Step 2: Convert to fraction form
    131,422.75/181,363.41 = 71,806.75/x
  3. Step 3: Cross multiply
    131,422.75x = 181,363.41 × 71,806.75
  4. Step 4: Simplify right side
    131,422.75x = 13,023,117,041.02
  5. Step 5: Solve for x
    x = 13,023,117,041.02/131,422.75
  6. Step 6: Final answer
    x = 99,093.32

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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.