Home / 210,375.16-315,367.76-83,984.80

Finding the Fourth Proportional to 210,375.16, 315,367.76 and 83,984.80

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Solution

The fourth proportional to 210,375.16, 315,367.76 and 83,984.80 is: 125,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,375.16 : 315,367.76 = 83,984.80 : x
  2. Step 2: Convert to fraction form
    210,375.16/315,367.76 = 83,984.80/x
  3. Step 3: Cross multiply
    210,375.16x = 315,367.76 × 83,984.80
  4. Step 4: Simplify right side
    210,375.16x = 26,486,098,250.05
  5. Step 5: Solve for x
    x = 26,486,098,250.05/210,375.16
  6. Step 6: Final answer
    x = 125,899.36

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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.