Home / 155,731.89-214,914.48-87,749.67

Finding the Fourth Proportional to 155,731.89, 214,914.48 and 87,749.67

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Solution

The fourth proportional to 155,731.89, 214,914.48 and 87,749.67 is: 121,097.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,731.89 : 214,914.48 = 87,749.67 : x
  2. Step 2: Convert to fraction form
    155,731.89/214,914.48 = 87,749.67/x
  3. Step 3: Cross multiply
    155,731.89x = 214,914.48 × 87,749.67
  4. Step 4: Simplify right side
    155,731.89x = 18,858,674,698.22
  5. Step 5: Solve for x
    x = 18,858,674,698.22/155,731.89
  6. Step 6: Final answer
    x = 121,097.06

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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.