Home / 131,873.09-181,984.64-71,445.26

Finding the Fourth Proportional to 131,873.09, 181,984.64 and 71,445.26

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Solution

The fourth proportional to 131,873.09, 181,984.64 and 71,445.26 is: 98,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,873.09 : 181,984.64 = 71,445.26 : x
  2. Step 2: Convert to fraction form
    131,873.09/181,984.64 = 71,445.26/x
  3. Step 3: Cross multiply
    131,873.09x = 181,984.64 × 71,445.26
  4. Step 4: Simplify right side
    131,873.09x = 13,001,940,018.54
  5. Step 5: Solve for x
    x = 13,001,940,018.54/131,873.09
  6. Step 6: Final answer
    x = 98,594.34

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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.