Home / 231,563.14-319,570.59-129,587.71

Finding the Fourth Proportional to 231,563.14, 319,570.59 and 129,587.71

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Solution

The fourth proportional to 231,563.14, 319,570.59 and 129,587.71 is: 178,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,563.14 : 319,570.59 = 129,587.71 : x
  2. Step 2: Convert to fraction form
    231,563.14/319,570.59 = 129,587.71/x
  3. Step 3: Cross multiply
    231,563.14x = 319,570.59 × 129,587.71
  4. Step 4: Simplify right side
    231,563.14x = 41,412,420,941.45
  5. Step 5: Solve for x
    x = 41,412,420,941.45/231,563.14
  6. Step 6: Final answer
    x = 178,838.57

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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.