Home / 142,837.68-214,245.64-54,083.12

Finding the Fourth Proportional to 142,837.68, 214,245.64 and 54,083.12

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Solution

The fourth proportional to 142,837.68, 214,245.64 and 54,083.12 is: 81,120.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,837.68 : 214,245.64 = 54,083.12 : x
  2. Step 2: Convert to fraction form
    142,837.68/214,245.64 = 54,083.12/x
  3. Step 3: Cross multiply
    142,837.68x = 214,245.64 × 54,083.12
  4. Step 4: Simplify right side
    142,837.68x = 11,587,072,657.60
  5. Step 5: Solve for x
    x = 11,587,072,657.60/142,837.68
  6. Step 6: Final answer
    x = 81,120.56

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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.