Home / 169,031.82-233,015.40-128,675.28

Finding the Fourth Proportional to 169,031.82, 233,015.40 and 128,675.28

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Solution

The fourth proportional to 169,031.82, 233,015.40 and 128,675.28 is: 177,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,031.82 : 233,015.40 = 128,675.28 : x
  2. Step 2: Convert to fraction form
    169,031.82/233,015.40 = 128,675.28/x
  3. Step 3: Cross multiply
    169,031.82x = 233,015.40 × 128,675.28
  4. Step 4: Simplify right side
    169,031.82x = 29,983,321,839.31
  5. Step 5: Solve for x
    x = 29,983,321,839.31/169,031.82
  6. Step 6: Final answer
    x = 177,382.71

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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.