Home / 235,505.36-324,994.34-128,073.11

Finding the Fourth Proportional to 235,505.36, 324,994.34 and 128,073.11

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Solution

The fourth proportional to 235,505.36, 324,994.34 and 128,073.11 is: 176,739.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,505.36 : 324,994.34 = 128,073.11 : x
  2. Step 2: Convert to fraction form
    235,505.36/324,994.34 = 128,073.11/x
  3. Step 3: Cross multiply
    235,505.36x = 324,994.34 × 128,073.11
  4. Step 4: Simplify right side
    235,505.36x = 41,623,034,231.23
  5. Step 5: Solve for x
    x = 41,623,034,231.23/235,505.36
  6. Step 6: Final answer
    x = 176,739.22

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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.