Home / 127,378.45-175,318.25-112,171.51

Finding the Fourth Proportional to 127,378.45, 175,318.25 and 112,171.51

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Solution

The fourth proportional to 127,378.45, 175,318.25 and 112,171.51 is: 154,388.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,378.45 : 175,318.25 = 112,171.51 : x
  2. Step 2: Convert to fraction form
    127,378.45/175,318.25 = 112,171.51/x
  3. Step 3: Cross multiply
    127,378.45x = 175,318.25 × 112,171.51
  4. Step 4: Simplify right side
    127,378.45x = 19,665,712,833.06
  5. Step 5: Solve for x
    x = 19,665,712,833.06/127,378.45
  6. Step 6: Final answer
    x = 154,388.07

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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.