Home / 236,945.12-326,984.27-129,515.57

Finding the Fourth Proportional to 236,945.12, 326,984.27 and 129,515.57

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Solution

The fourth proportional to 236,945.12, 326,984.27 and 129,515.57 is: 178,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,945.12 : 326,984.27 = 129,515.57 : x
  2. Step 2: Convert to fraction form
    236,945.12/326,984.27 = 129,515.57/x
  3. Step 3: Cross multiply
    236,945.12x = 326,984.27 × 129,515.57
  4. Step 4: Simplify right side
    236,945.12x = 42,349,551,827.58
  5. Step 5: Solve for x
    x = 42,349,551,827.58/236,945.12
  6. Step 6: Final answer
    x = 178,731.48

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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.