Home / 211,055.45-291,258.37-125,019.32

Finding the Fourth Proportional to 211,055.45, 291,258.37 and 125,019.32

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Solution

The fourth proportional to 211,055.45, 291,258.37 and 125,019.32 is: 172,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,055.45 : 291,258.37 = 125,019.32 : x
  2. Step 2: Convert to fraction form
    211,055.45/291,258.37 = 125,019.32/x
  3. Step 3: Cross multiply
    211,055.45x = 291,258.37 × 125,019.32
  4. Step 4: Simplify right side
    211,055.45x = 36,412,922,996.79
  5. Step 5: Solve for x
    x = 36,412,922,996.79/211,055.45
  6. Step 6: Final answer
    x = 172,527.76

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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.