Home / 210,147.60-315,241.20-83,757.36

Finding the Fourth Proportional to 210,147.60, 315,241.20 and 83,757.36

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Solution

The fourth proportional to 210,147.60, 315,241.20 and 83,757.36 is: 125,643.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,147.60 : 315,241.20 = 83,757.36 : x
  2. Step 2: Convert to fraction form
    210,147.60/315,241.20 = 83,757.36/x
  3. Step 3: Cross multiply
    210,147.60x = 315,241.20 × 83,757.36
  4. Step 4: Simplify right side
    210,147.60x = 26,403,770,675.23
  5. Step 5: Solve for x
    x = 26,403,770,675.23/210,147.60
  6. Step 6: Final answer
    x = 125,643.93

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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.