Home / 151,800.12-209,478.66-83,815.62

Finding the Fourth Proportional to 151,800.12, 209,478.66 and 83,815.62

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Solution

The fourth proportional to 151,800.12, 209,478.66 and 83,815.62 is: 115,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,800.12 : 209,478.66 = 83,815.62 : x
  2. Step 2: Convert to fraction form
    151,800.12/209,478.66 = 83,815.62/x
  3. Step 3: Cross multiply
    151,800.12x = 209,478.66 × 83,815.62
  4. Step 4: Simplify right side
    151,800.12x = 17,557,583,764.67
  5. Step 5: Solve for x
    x = 17,557,583,764.67/151,800.12
  6. Step 6: Final answer
    x = 115,662.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.