Home / 188,316.13-259,921.52-107,790.34

Finding the Fourth Proportional to 188,316.13, 259,921.52 and 107,790.34

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Solution

The fourth proportional to 188,316.13, 259,921.52 and 107,790.34 is: 148,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,316.13 : 259,921.52 = 107,790.34 : x
  2. Step 2: Convert to fraction form
    188,316.13/259,921.52 = 107,790.34/x
  3. Step 3: Cross multiply
    188,316.13x = 259,921.52 × 107,790.34
  4. Step 4: Simplify right side
    188,316.13x = 28,017,029,014.12
  5. Step 5: Solve for x
    x = 28,017,029,014.12/188,316.13
  6. Step 6: Final answer
    x = 148,776.58

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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.