Home / 210,982.08-291,162.24-120,351.36

Finding the Fourth Proportional to 210,982.08, 291,162.24 and 120,351.36

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Solution

The fourth proportional to 210,982.08, 291,162.24 and 120,351.36 is: 166,088.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,982.08 : 291,162.24 = 120,351.36 : x
  2. Step 2: Convert to fraction form
    210,982.08/291,162.24 = 120,351.36/x
  3. Step 3: Cross multiply
    210,982.08x = 291,162.24 × 120,351.36
  4. Step 4: Simplify right side
    210,982.08x = 35,041,771,564.65
  5. Step 5: Solve for x
    x = 35,041,771,564.65/210,982.08
  6. Step 6: Final answer
    x = 166,088.85

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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.