Home / 236,756.64-326,722.20-129,326.70

Finding the Fourth Proportional to 236,756.64, 326,722.20 and 129,326.70

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Solution

The fourth proportional to 236,756.64, 326,722.20 and 129,326.70 is: 178,469.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,756.64 : 326,722.20 = 129,326.70 : x
  2. Step 2: Convert to fraction form
    236,756.64/326,722.20 = 129,326.70/x
  3. Step 3: Cross multiply
    236,756.64x = 326,722.20 × 129,326.70
  4. Step 4: Simplify right side
    236,756.64x = 42,253,903,942.74
  5. Step 5: Solve for x
    x = 42,253,903,942.74/236,756.64
  6. Step 6: Final answer
    x = 178,469.77

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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.