Home / 151,586.10-209,190.26-87,054.52

Finding the Fourth Proportional to 151,586.10, 209,190.26 and 87,054.52

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Solution

The fourth proportional to 151,586.10, 209,190.26 and 87,054.52 is: 120,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,586.10 : 209,190.26 = 87,054.52 : x
  2. Step 2: Convert to fraction form
    151,586.10/209,190.26 = 87,054.52/x
  3. Step 3: Cross multiply
    151,586.10x = 209,190.26 × 87,054.52
  4. Step 4: Simplify right side
    151,586.10x = 18,210,957,672.98
  5. Step 5: Solve for x
    x = 18,210,957,672.98/151,586.10
  6. Step 6: Final answer
    x = 120,136.07

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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.