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Finding the Fourth Proportional to 146,762.70, 220,144.05 and 145,887.90

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Solution

The fourth proportional to 146,762.70, 220,144.05 and 145,887.90 is: 218,831.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,762.70 : 220,144.05 = 145,887.90 : x
  2. Step 2: Convert to fraction form
    146,762.70/220,144.05 = 145,887.90/x
  3. Step 3: Cross multiply
    146,762.70x = 220,144.05 × 145,887.90
  4. Step 4: Simplify right side
    146,762.70x = 32,116,353,152.00
  5. Step 5: Solve for x
    x = 32,116,353,152.00/146,762.70
  6. Step 6: Final answer
    x = 218,831.85

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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.