Home / 236,865.76-326,874.36-129,435.82

Finding the Fourth Proportional to 236,865.76, 326,874.36 and 129,435.82

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Solution

The fourth proportional to 236,865.76, 326,874.36 and 129,435.82 is: 178,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,865.76 : 326,874.36 = 129,435.82 : x
  2. Step 2: Convert to fraction form
    236,865.76/326,874.36 = 129,435.82/x
  3. Step 3: Cross multiply
    236,865.76x = 326,874.36 × 129,435.82
  4. Step 4: Simplify right side
    236,865.76x = 42,309,250,823.58
  5. Step 5: Solve for x
    x = 42,309,250,823.58/236,865.76
  6. Step 6: Final answer
    x = 178,621.22

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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.