Home / 107,711.69-161,567.40-28,823.86

Finding the Fourth Proportional to 107,711.69, 161,567.40 and 28,823.86

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Solution

The fourth proportional to 107,711.69, 161,567.40 and 28,823.86 is: 43,235.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,711.69 : 161,567.40 = 28,823.86 : x
  2. Step 2: Convert to fraction form
    107,711.69/161,567.40 = 28,823.86/x
  3. Step 3: Cross multiply
    107,711.69x = 161,567.40 × 28,823.86
  4. Step 4: Simplify right side
    107,711.69x = 4,656,995,714.25
  5. Step 5: Solve for x
    x = 4,656,995,714.25/107,711.69
  6. Step 6: Final answer
    x = 43,235.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.