Home / 131,536.31-181,537.88-74,187.41

Finding the Fourth Proportional to 131,536.31, 181,537.88 and 74,187.41

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Solution

The fourth proportional to 131,536.31, 181,537.88 and 74,187.41 is: 102,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,536.31 : 181,537.88 = 74,187.41 : x
  2. Step 2: Convert to fraction form
    131,536.31/181,537.88 = 74,187.41/x
  3. Step 3: Cross multiply
    131,536.31x = 181,537.88 × 74,187.41
  4. Step 4: Simplify right side
    131,536.31x = 13,467,824,411.87
  5. Step 5: Solve for x
    x = 13,467,824,411.87/131,536.31
  6. Step 6: Final answer
    x = 102,388.64

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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.