Home / 146,923.60-220,231.80-80,261.20

Finding the Fourth Proportional to 146,923.60, 220,231.80 and 80,261.20

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Solution

The fourth proportional to 146,923.60, 220,231.80 and 80,261.20 is: 120,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,923.60 : 220,231.80 = 80,261.20 : x
  2. Step 2: Convert to fraction form
    146,923.60/220,231.80 = 80,261.20/x
  3. Step 3: Cross multiply
    146,923.60x = 220,231.80 × 80,261.20
  4. Step 4: Simplify right side
    146,923.60x = 17,676,068,546.16
  5. Step 5: Solve for x
    x = 17,676,068,546.16/146,923.60
  6. Step 6: Final answer
    x = 120,307.89

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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.