Home / 236,689.57-326,634.29-129,260.89

Finding the Fourth Proportional to 236,689.57, 326,634.29 and 129,260.89

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Solution

The fourth proportional to 236,689.57, 326,634.29 and 129,260.89 is: 178,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,689.57 : 326,634.29 = 129,260.89 : x
  2. Step 2: Convert to fraction form
    236,689.57/326,634.29 = 129,260.89/x
  3. Step 3: Cross multiply
    236,689.57x = 326,634.29 × 129,260.89
  4. Step 4: Simplify right side
    236,689.57x = 42,221,039,029.92
  5. Step 5: Solve for x
    x = 42,221,039,029.92/236,689.57
  6. Step 6: Final answer
    x = 178,381.49

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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.