Home / 236,823.98-326,813.27-129,391.71

Finding the Fourth Proportional to 236,823.98, 326,813.27 and 129,391.71

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Solution

The fourth proportional to 236,823.98, 326,813.27 and 129,391.71 is: 178,558.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,823.98 : 326,813.27 = 129,391.71 : x
  2. Step 2: Convert to fraction form
    236,823.98/326,813.27 = 129,391.71/x
  3. Step 3: Cross multiply
    236,823.98x = 326,813.27 × 129,391.71
  4. Step 4: Simplify right side
    236,823.98x = 42,286,927,209.03
  5. Step 5: Solve for x
    x = 42,286,927,209.03/236,823.98
  6. Step 6: Final answer
    x = 178,558.47

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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.