Home / 210,005.10-315,007.65-131,273.10

Finding the Fourth Proportional to 210,005.10, 315,007.65 and 131,273.10

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Solution

The fourth proportional to 210,005.10, 315,007.65 and 131,273.10 is: 196,909.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.10 : 315,007.65 = 131,273.10 : x
  2. Step 2: Convert to fraction form
    210,005.10/315,007.65 = 131,273.10/x
  3. Step 3: Cross multiply
    210,005.10x = 315,007.65 × 131,273.10
  4. Step 4: Simplify right side
    210,005.10x = 41,352,030,739.22
  5. Step 5: Solve for x
    x = 41,352,030,739.22/210,005.10
  6. Step 6: Final answer
    x = 196,909.65

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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.