Home / 157,481.12-236,334-87,416.48

Finding the Fourth Proportional to 157,481.12, 236,334 and 87,416.48

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Solution

The fourth proportional to 157,481.12, 236,334 and 87,416.48 is: 131,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,481.12 : 236,334 = 87,416.48 : x
  2. Step 2: Convert to fraction form
    157,481.12/236,334 = 87,416.48/x
  3. Step 3: Cross multiply
    157,481.12x = 236,334 × 87,416.48
  4. Step 4: Simplify right side
    157,481.12x = 20,659,486,384.32
  5. Step 5: Solve for x
    x = 20,659,486,384.32/157,481.12
  6. Step 6: Final answer
    x = 131,187.07

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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.