Home / 150,586.30-207,815.61-90,145.25

Finding the Fourth Proportional to 150,586.30, 207,815.61 and 90,145.25

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Solution

The fourth proportional to 150,586.30, 207,815.61 and 90,145.25 is: 124,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,586.30 : 207,815.61 = 90,145.25 : x
  2. Step 2: Convert to fraction form
    150,586.30/207,815.61 = 90,145.25/x
  3. Step 3: Cross multiply
    150,586.30x = 207,815.61 × 90,145.25
  4. Step 4: Simplify right side
    150,586.30x = 18,733,590,117.35
  5. Step 5: Solve for x
    x = 18,733,590,117.35/150,586.30
  6. Step 6: Final answer
    x = 124,404.35

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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.