Home / 151,128.84-208,613.94-129,822.60

Finding the Fourth Proportional to 151,128.84, 208,613.94 and 129,822.60

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Solution

The fourth proportional to 151,128.84, 208,613.94 and 129,822.60 is: 179,203.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,128.84 : 208,613.94 = 129,822.60 : x
  2. Step 2: Convert to fraction form
    151,128.84/208,613.94 = 129,822.60/x
  3. Step 3: Cross multiply
    151,128.84x = 208,613.94 × 129,822.60
  4. Step 4: Simplify right side
    151,128.84x = 27,082,804,087.04
  5. Step 5: Solve for x
    x = 27,082,804,087.04/151,128.84
  6. Step 6: Final answer
    x = 179,203.41

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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.