Home / 236,690.66-326,631.44-129,260.72

Finding the Fourth Proportional to 236,690.66, 326,631.44 and 129,260.72

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Solution

The fourth proportional to 236,690.66, 326,631.44 and 129,260.72 is: 178,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,690.66 : 326,631.44 = 129,260.72 : x
  2. Step 2: Convert to fraction form
    236,690.66/326,631.44 = 129,260.72/x
  3. Step 3: Cross multiply
    236,690.66x = 326,631.44 × 129,260.72
  4. Step 4: Simplify right side
    236,690.66x = 42,220,612,829.58
  5. Step 5: Solve for x
    x = 42,220,612,829.58/236,690.66
  6. Step 6: Final answer
    x = 178,378.88

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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.