Home / 236,019.81-325,711.07-128,589.81

Finding the Fourth Proportional to 236,019.81, 325,711.07 and 128,589.81

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Solution

The fourth proportional to 236,019.81, 325,711.07 and 128,589.81 is: 177,455.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,019.81 : 325,711.07 = 128,589.81 : x
  2. Step 2: Convert to fraction form
    236,019.81/325,711.07 = 128,589.81/x
  3. Step 3: Cross multiply
    236,019.81x = 325,711.07 × 128,589.81
  4. Step 4: Simplify right side
    236,019.81x = 41,883,124,927.67
  5. Step 5: Solve for x
    x = 41,883,124,927.67/236,019.81
  6. Step 6: Final answer
    x = 177,455.97

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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.