Home / 201,832.13-278,528.34-112,408.13

Finding the Fourth Proportional to 201,832.13, 278,528.34 and 112,408.13

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Solution

The fourth proportional to 201,832.13, 278,528.34 and 112,408.13 is: 155,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,832.13 : 278,528.34 = 112,408.13 : x
  2. Step 2: Convert to fraction form
    201,832.13/278,528.34 = 112,408.13/x
  3. Step 3: Cross multiply
    201,832.13x = 278,528.34 × 112,408.13
  4. Step 4: Simplify right side
    201,832.13x = 31,308,848,458.76
  5. Step 5: Solve for x
    x = 31,308,848,458.76/201,832.13
  6. Step 6: Final answer
    x = 155,123.22

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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.