Home / 235,621.54-325,154.15-128,189.12

Finding the Fourth Proportional to 235,621.54, 325,154.15 and 128,189.12

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Solution

The fourth proportional to 235,621.54, 325,154.15 and 128,189.12 is: 176,899.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,621.54 : 325,154.15 = 128,189.12 : x
  2. Step 2: Convert to fraction form
    235,621.54/325,154.15 = 128,189.12/x
  3. Step 3: Cross multiply
    235,621.54x = 325,154.15 × 128,189.12
  4. Step 4: Simplify right side
    235,621.54x = 41,681,222,566.84
  5. Step 5: Solve for x
    x = 41,681,222,566.84/235,621.54
  6. Step 6: Final answer
    x = 176,899.03

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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.