Home / 210,921.84-291,079.44-120,291.48

Finding the Fourth Proportional to 210,921.84, 291,079.44 and 120,291.48

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Solution

The fourth proportional to 210,921.84, 291,079.44 and 120,291.48 is: 166,006.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,921.84 : 291,079.44 = 120,291.48 : x
  2. Step 2: Convert to fraction form
    210,921.84/291,079.44 = 120,291.48/x
  3. Step 3: Cross multiply
    210,921.84x = 291,079.44 × 120,291.48
  4. Step 4: Simplify right side
    210,921.84x = 35,014,376,635.17
  5. Step 5: Solve for x
    x = 35,014,376,635.17/210,921.84
  6. Step 6: Final answer
    x = 166,006.41

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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.