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Finding the Fourth Proportional to 100,810.15, 151,215.03 and 29,782.67

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Solution

The fourth proportional to 100,810.15, 151,215.03 and 29,782.67 is: 44,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,810.15 : 151,215.03 = 29,782.67 : x
  2. Step 2: Convert to fraction form
    100,810.15/151,215.03 = 29,782.67/x
  3. Step 3: Cross multiply
    100,810.15x = 151,215.03 × 29,782.67
  4. Step 4: Simplify right side
    100,810.15x = 4,503,586,581.45
  5. Step 5: Solve for x
    x = 4,503,586,581.45/100,810.15
  6. Step 6: Final answer
    x = 44,673.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.