Home / 236,038.51-325,729.03-128,609.43

Finding the Fourth Proportional to 236,038.51, 325,729.03 and 128,609.43

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Solution

The fourth proportional to 236,038.51, 325,729.03 and 128,609.43 is: 177,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,038.51 : 325,729.03 = 128,609.43 : x
  2. Step 2: Convert to fraction form
    236,038.51/325,729.03 = 128,609.43/x
  3. Step 3: Cross multiply
    236,038.51x = 325,729.03 × 128,609.43
  4. Step 4: Simplify right side
    236,038.51x = 41,891,824,882.75
  5. Step 5: Solve for x
    x = 41,891,824,882.75/236,038.51
  6. Step 6: Final answer
    x = 177,478.77

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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.