Home / 139,174.32-191,795.40-136,615.20

Finding the Fourth Proportional to 139,174.32, 191,795.40 and 136,615.20

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Solution

The fourth proportional to 139,174.32, 191,795.40 and 136,615.20 is: 188,268.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,174.32 : 191,795.40 = 136,615.20 : x
  2. Step 2: Convert to fraction form
    139,174.32/191,795.40 = 136,615.20/x
  3. Step 3: Cross multiply
    139,174.32x = 191,795.40 × 136,615.20
  4. Step 4: Simplify right side
    139,174.32x = 26,202,166,930.08
  5. Step 5: Solve for x
    x = 26,202,166,930.08/139,174.32
  6. Step 6: Final answer
    x = 188,268.69

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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.