Home / 151,355.16-208,871.60-83,372.45

Finding the Fourth Proportional to 151,355.16, 208,871.60 and 83,372.45

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Solution

The fourth proportional to 151,355.16, 208,871.60 and 83,372.45 is: 115,054.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,355.16 : 208,871.60 = 83,372.45 : x
  2. Step 2: Convert to fraction form
    151,355.16/208,871.60 = 83,372.45/x
  3. Step 3: Cross multiply
    151,355.16x = 208,871.60 × 83,372.45
  4. Step 4: Simplify right side
    151,355.16x = 17,414,135,566.20
  5. Step 5: Solve for x
    x = 17,414,135,566.20/151,355.16
  6. Step 6: Final answer
    x = 115,054.79

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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.