Home / 151,048.53-208,430.82-87,374.43

Finding the Fourth Proportional to 151,048.53, 208,430.82 and 87,374.43

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Solution

The fourth proportional to 151,048.53, 208,430.82 and 87,374.43 is: 120,567.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,048.53 : 208,430.82 = 87,374.43 : x
  2. Step 2: Convert to fraction form
    151,048.53/208,430.82 = 87,374.43/x
  3. Step 3: Cross multiply
    151,048.53x = 208,430.82 × 87,374.43
  4. Step 4: Simplify right side
    151,048.53x = 18,211,524,091.93
  5. Step 5: Solve for x
    x = 18,211,524,091.93/151,048.53
  6. Step 6: Final answer
    x = 120,567.37

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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.