Home / 236,117.88-325,833.12-128,685.60

Finding the Fourth Proportional to 236,117.88, 325,833.12 and 128,685.60

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Solution

The fourth proportional to 236,117.88, 325,833.12 and 128,685.60 is: 177,580.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,117.88 : 325,833.12 = 128,685.60 : x
  2. Step 2: Convert to fraction form
    236,117.88/325,833.12 = 128,685.60/x
  3. Step 3: Cross multiply
    236,117.88x = 325,833.12 × 128,685.60
  4. Step 4: Simplify right side
    236,117.88x = 41,930,030,547.07
  5. Step 5: Solve for x
    x = 41,930,030,547.07/236,117.88
  6. Step 6: Final answer
    x = 177,580.92

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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.