Home / 147,678.32-203,725.12-96,668.56

Finding the Fourth Proportional to 147,678.32, 203,725.12 and 96,668.56

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Solution

The fourth proportional to 147,678.32, 203,725.12 and 96,668.56 is: 133,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,678.32 : 203,725.12 = 96,668.56 : x
  2. Step 2: Convert to fraction form
    147,678.32/203,725.12 = 96,668.56/x
  3. Step 3: Cross multiply
    147,678.32x = 203,725.12 × 96,668.56
  4. Step 4: Simplify right side
    147,678.32x = 19,693,813,986.23
  5. Step 5: Solve for x
    x = 19,693,813,986.23/147,678.32
  6. Step 6: Final answer
    x = 133,356.16

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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.