Home / 188,715.96-260,317.38-120,708.12

Finding the Fourth Proportional to 188,715.96, 260,317.38 and 120,708.12

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Solution

The fourth proportional to 188,715.96, 260,317.38 and 120,708.12 is: 166,506.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,715.96 : 260,317.38 = 120,708.12 : x
  2. Step 2: Convert to fraction form
    188,715.96/260,317.38 = 120,708.12/x
  3. Step 3: Cross multiply
    188,715.96x = 260,317.38 × 120,708.12
  4. Step 4: Simplify right side
    188,715.96x = 31,422,421,543.13
  5. Step 5: Solve for x
    x = 31,422,421,543.13/188,715.96
  6. Step 6: Final answer
    x = 166,506.43

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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.