Home / 235,530.14-325,022.24-128,100.12

Finding the Fourth Proportional to 235,530.14, 325,022.24 and 128,100.12

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Solution

The fourth proportional to 235,530.14, 325,022.24 and 128,100.12 is: 176,773.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,530.14 : 325,022.24 = 128,100.12 : x
  2. Step 2: Convert to fraction form
    235,530.14/325,022.24 = 128,100.12/x
  3. Step 3: Cross multiply
    235,530.14x = 325,022.24 × 128,100.12
  4. Step 4: Simplify right side
    235,530.14x = 41,635,387,946.67
  5. Step 5: Solve for x
    x = 41,635,387,946.67/235,530.14
  6. Step 6: Final answer
    x = 176,773.08

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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.