Home / 188,711.23-260,427.73-108,154.20

Finding the Fourth Proportional to 188,711.23, 260,427.73 and 108,154.20

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Solution

The fourth proportional to 188,711.23, 260,427.73 and 108,154.20 is: 149,256.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,711.23 : 260,427.73 = 108,154.20 : x
  2. Step 2: Convert to fraction form
    188,711.23/260,427.73 = 108,154.20/x
  3. Step 3: Cross multiply
    188,711.23x = 260,427.73 × 108,154.20
  4. Step 4: Simplify right side
    188,711.23x = 28,166,352,795.97
  5. Step 5: Solve for x
    x = 28,166,352,795.97/188,711.23
  6. Step 6: Final answer
    x = 149,256.37

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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.