Home / 169,809.12-234,350.40-109,505.28

Finding the Fourth Proportional to 169,809.12, 234,350.40 and 109,505.28

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Solution

The fourth proportional to 169,809.12, 234,350.40 and 109,505.28 is: 151,126.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,809.12 : 234,350.40 = 109,505.28 : x
  2. Step 2: Convert to fraction form
    169,809.12/234,350.40 = 109,505.28/x
  3. Step 3: Cross multiply
    169,809.12x = 234,350.40 × 109,505.28
  4. Step 4: Simplify right side
    169,809.12x = 25,662,606,170.11
  5. Step 5: Solve for x
    x = 25,662,606,170.11/169,809.12
  6. Step 6: Final answer
    x = 151,126.19

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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.