Home / 210,209.96-315,162.19-83,812.29

Finding the Fourth Proportional to 210,209.96, 315,162.19 and 83,812.29

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Solution

The fourth proportional to 210,209.96, 315,162.19 and 83,812.29 is: 125,657.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,209.96 : 315,162.19 = 83,812.29 : x
  2. Step 2: Convert to fraction form
    210,209.96/315,162.19 = 83,812.29/x
  3. Step 3: Cross multiply
    210,209.96x = 315,162.19 × 83,812.29
  4. Step 4: Simplify right side
    210,209.96x = 26,414,466,447.40
  5. Step 5: Solve for x
    x = 26,414,466,447.40/210,209.96
  6. Step 6: Final answer
    x = 125,657.54

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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.