Home / 146,748.20-220,220.96-51,978.06

Finding the Fourth Proportional to 146,748.20, 220,220.96 and 51,978.06

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Solution

The fourth proportional to 146,748.20, 220,220.96 and 51,978.06 is: 78,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,748.20 : 220,220.96 = 51,978.06 : x
  2. Step 2: Convert to fraction form
    146,748.20/220,220.96 = 51,978.06/x
  3. Step 3: Cross multiply
    146,748.20x = 220,220.96 × 51,978.06
  4. Step 4: Simplify right side
    146,748.20x = 11,446,658,012.25
  5. Step 5: Solve for x
    x = 11,446,658,012.25/146,748.20
  6. Step 6: Final answer
    x = 78,002.04

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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.