Home / 236,045.25-325,742.49-128,615.30

Finding the Fourth Proportional to 236,045.25, 325,742.49 and 128,615.30

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Solution

The fourth proportional to 236,045.25, 325,742.49 and 128,615.30 is: 177,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,045.25 : 325,742.49 = 128,615.30 : x
  2. Step 2: Convert to fraction form
    236,045.25/325,742.49 = 128,615.30/x
  3. Step 3: Cross multiply
    236,045.25x = 325,742.49 × 128,615.30
  4. Step 4: Simplify right side
    236,045.25x = 41,895,466,445.38
  5. Step 5: Solve for x
    x = 41,895,466,445.38/236,045.25
  6. Step 6: Final answer
    x = 177,489.13

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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.