Home / 130,093.18-179,313.78-87,057.34

Finding the Fourth Proportional to 130,093.18, 179,313.78 and 87,057.34

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Solution

The fourth proportional to 130,093.18, 179,313.78 and 87,057.34 is: 119,995.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,093.18 : 179,313.78 = 87,057.34 : x
  2. Step 2: Convert to fraction form
    130,093.18/179,313.78 = 87,057.34/x
  3. Step 3: Cross multiply
    130,093.18x = 179,313.78 × 87,057.34
  4. Step 4: Simplify right side
    130,093.18x = 15,610,580,712.15
  5. Step 5: Solve for x
    x = 15,610,580,712.15/130,093.18
  6. Step 6: Final answer
    x = 119,995.38

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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.