Home / 210,114.30-315,174.06-69,872.88

Finding the Fourth Proportional to 210,114.30, 315,174.06 and 69,872.88

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Solution

The fourth proportional to 210,114.30, 315,174.06 and 69,872.88 is: 104,810.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,114.30 : 315,174.06 = 69,872.88 : x
  2. Step 2: Convert to fraction form
    210,114.30/315,174.06 = 69,872.88/x
  3. Step 3: Cross multiply
    210,114.30x = 315,174.06 × 69,872.88
  4. Step 4: Simplify right side
    210,114.30x = 22,022,119,273.49
  5. Step 5: Solve for x
    x = 22,022,119,273.49/210,114.30
  6. Step 6: Final answer
    x = 104,810.19

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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.