Home / 165,780.27-228,653.28-129,898.89

Finding the Fourth Proportional to 165,780.27, 228,653.28 and 129,898.89

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Solution

The fourth proportional to 165,780.27, 228,653.28 and 129,898.89 is: 179,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,780.27 : 228,653.28 = 129,898.89 : x
  2. Step 2: Convert to fraction form
    165,780.27/228,653.28 = 129,898.89/x
  3. Step 3: Cross multiply
    165,780.27x = 228,653.28 × 129,898.89
  4. Step 4: Simplify right side
    165,780.27x = 29,701,807,266.86
  5. Step 5: Solve for x
    x = 29,701,807,266.86/165,780.27
  6. Step 6: Final answer
    x = 179,163.70

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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.