Home / 155,342.36-214,754.64-153,921.42

Finding the Fourth Proportional to 155,342.36, 214,754.64 and 153,921.42

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Solution

The fourth proportional to 155,342.36, 214,754.64 and 153,921.42 is: 212,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,342.36 : 214,754.64 = 153,921.42 : x
  2. Step 2: Convert to fraction form
    155,342.36/214,754.64 = 153,921.42/x
  3. Step 3: Cross multiply
    155,342.36x = 214,754.64 × 153,921.42
  4. Step 4: Simplify right side
    155,342.36x = 33,055,339,140.39
  5. Step 5: Solve for x
    x = 33,055,339,140.39/155,342.36
  6. Step 6: Final answer
    x = 212,790.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.