Home / 151,710.53-209,353.43-87,134.34

Finding the Fourth Proportional to 151,710.53, 209,353.43 and 87,134.34

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Solution

The fourth proportional to 151,710.53, 209,353.43 and 87,134.34 is: 120,241.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,710.53 : 209,353.43 = 87,134.34 : x
  2. Step 2: Convert to fraction form
    151,710.53/209,353.43 = 87,134.34/x
  3. Step 3: Cross multiply
    151,710.53x = 209,353.43 × 87,134.34
  4. Step 4: Simplify right side
    151,710.53x = 18,241,872,949.79
  5. Step 5: Solve for x
    x = 18,241,872,949.79/151,710.53
  6. Step 6: Final answer
    x = 120,241.31

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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.