Home / 146,815.20-220,222.80-136,317.60

Finding the Fourth Proportional to 146,815.20, 220,222.80 and 136,317.60

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Solution

The fourth proportional to 146,815.20, 220,222.80 and 136,317.60 is: 204,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,815.20 : 220,222.80 = 136,317.60 : x
  2. Step 2: Convert to fraction form
    146,815.20/220,222.80 = 136,317.60/x
  3. Step 3: Cross multiply
    146,815.20x = 220,222.80 × 136,317.60
  4. Step 4: Simplify right side
    146,815.20x = 30,020,243,561.28
  5. Step 5: Solve for x
    x = 30,020,243,561.28/146,815.20
  6. Step 6: Final answer
    x = 204,476.40

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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.