Home / 210,890.09-315,937.82-104,149.10

Finding the Fourth Proportional to 210,890.09, 315,937.82 and 104,149.10

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Solution

The fourth proportional to 210,890.09, 315,937.82 and 104,149.10 is: 156,027.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,890.09 : 315,937.82 = 104,149.10 : x
  2. Step 2: Convert to fraction form
    210,890.09/315,937.82 = 104,149.10/x
  3. Step 3: Cross multiply
    210,890.09x = 315,937.82 × 104,149.10
  4. Step 4: Simplify right side
    210,890.09x = 32,904,638,289.65
  5. Step 5: Solve for x
    x = 32,904,638,289.65/210,890.09
  6. Step 6: Final answer
    x = 156,027.43

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1.5x scale

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.