Home / 169,905.60-234,452.88-129,645.36

Finding the Fourth Proportional to 169,905.60, 234,452.88 and 129,645.36

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Solution

The fourth proportional to 169,905.60, 234,452.88 and 129,645.36 is: 178,897.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,905.60 : 234,452.88 = 129,645.36 : x
  2. Step 2: Convert to fraction form
    169,905.60/234,452.88 = 129,645.36/x
  3. Step 3: Cross multiply
    169,905.60x = 234,452.88 × 129,645.36
  4. Step 4: Simplify right side
    169,905.60x = 30,395,728,030.64
  5. Step 5: Solve for x
    x = 30,395,728,030.64/169,905.60
  6. Step 6: Final answer
    x = 178,897.74

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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.