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Finding the Fourth Proportional to 100,027.90, 149,990.55 and 29,898.10

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Solution

The fourth proportional to 100,027.90, 149,990.55 and 29,898.10 is: 44,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,027.90 : 149,990.55 = 29,898.10 : x
  2. Step 2: Convert to fraction form
    100,027.90/149,990.55 = 29,898.10/x
  3. Step 3: Cross multiply
    100,027.90x = 149,990.55 × 29,898.10
  4. Step 4: Simplify right side
    100,027.90x = 4,484,432,462.96
  5. Step 5: Solve for x
    x = 4,484,432,462.96/100,027.90
  6. Step 6: Final answer
    x = 44,831.82

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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.