Home / 236,769.58-326,742.15-129,340.90

Finding the Fourth Proportional to 236,769.58, 326,742.15 and 129,340.90

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Solution

The fourth proportional to 236,769.58, 326,742.15 and 129,340.90 is: 178,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,769.58 : 326,742.15 = 129,340.90 : x
  2. Step 2: Convert to fraction form
    236,769.58/326,742.15 = 129,340.90/x
  3. Step 3: Cross multiply
    236,769.58x = 326,742.15 × 129,340.90
  4. Step 4: Simplify right side
    236,769.58x = 42,261,123,748.94
  5. Step 5: Solve for x
    x = 42,261,123,748.94/236,769.58
  6. Step 6: Final answer
    x = 178,490.51

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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.