Home / 131,131.16-180,960.54-74,542.52

Finding the Fourth Proportional to 131,131.16, 180,960.54 and 74,542.52

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Solution

The fourth proportional to 131,131.16, 180,960.54 and 74,542.52 is: 102,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,131.16 : 180,960.54 = 74,542.52 : x
  2. Step 2: Convert to fraction form
    131,131.16/180,960.54 = 74,542.52/x
  3. Step 3: Cross multiply
    131,131.16x = 180,960.54 × 74,542.52
  4. Step 4: Simplify right side
    131,131.16x = 13,489,254,672.16
  5. Step 5: Solve for x
    x = 13,489,254,672.16/131,131.16
  6. Step 6: Final answer
    x = 102,868.42

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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.