Home / 235,515.65-325,008.45-128,083.37

Finding the Fourth Proportional to 235,515.65, 325,008.45 and 128,083.37

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Solution

The fourth proportional to 235,515.65, 325,008.45 and 128,083.37 is: 176,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,515.65 : 325,008.45 = 128,083.37 : x
  2. Step 2: Convert to fraction form
    235,515.65/325,008.45 = 128,083.37/x
  3. Step 3: Cross multiply
    235,515.65x = 325,008.45 × 128,083.37
  4. Step 4: Simplify right side
    235,515.65x = 41,628,175,929.43
  5. Step 5: Solve for x
    x = 41,628,175,929.43/235,515.65
  6. Step 6: Final answer
    x = 176,753.34

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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.