Home / 234,888.81-324,143.08-138,103.57

Finding the Fourth Proportional to 234,888.81, 324,143.08 and 138,103.57

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Solution

The fourth proportional to 234,888.81, 324,143.08 and 138,103.57 is: 190,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,888.81 : 324,143.08 = 138,103.57 : x
  2. Step 2: Convert to fraction form
    234,888.81/324,143.08 = 138,103.57/x
  3. Step 3: Cross multiply
    234,888.81x = 324,143.08 × 138,103.57
  4. Step 4: Simplify right side
    234,888.81x = 44,765,316,538.80
  5. Step 5: Solve for x
    x = 44,765,316,538.80/234,888.81
  6. Step 6: Final answer
    x = 190,580.88

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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.