Home / 151,046.16-208,427.54-87,372.06

Finding the Fourth Proportional to 151,046.16, 208,427.54 and 87,372.06

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Solution

The fourth proportional to 151,046.16, 208,427.54 and 87,372.06 is: 120,564.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,046.16 : 208,427.54 = 87,372.06 : x
  2. Step 2: Convert to fraction form
    151,046.16/208,427.54 = 87,372.06/x
  3. Step 3: Cross multiply
    151,046.16x = 208,427.54 × 87,372.06
  4. Step 4: Simplify right side
    151,046.16x = 18,210,743,530.53
  5. Step 5: Solve for x
    x = 18,210,743,530.53/151,046.16
  6. Step 6: Final answer
    x = 120,564.09

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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.