Home / 154,537.27-231,805.91-84,378.31

Finding the Fourth Proportional to 154,537.27, 231,805.91 and 84,378.31

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Solution

The fourth proportional to 154,537.27, 231,805.91 and 84,378.31 is: 126,567.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,537.27 : 231,805.91 = 84,378.31 : x
  2. Step 2: Convert to fraction form
    154,537.27/231,805.91 = 84,378.31/x
  3. Step 3: Cross multiply
    154,537.27x = 231,805.91 × 84,378.31
  4. Step 4: Simplify right side
    154,537.27x = 19,559,390,933.81
  5. Step 5: Solve for x
    x = 19,559,390,933.81/154,537.27
  6. Step 6: Final answer
    x = 126,567.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.