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Finding the Fourth Proportional to 131,779.86, 197,462.80 and 101,867.41

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Solution

The fourth proportional to 131,779.86, 197,462.80 and 101,867.41 is: 152,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779.86 : 197,462.80 = 101,867.41 : x
  2. Step 2: Convert to fraction form
    131,779.86/197,462.80 = 101,867.41/x
  3. Step 3: Cross multiply
    131,779.86x = 197,462.80 × 101,867.41
  4. Step 4: Simplify right side
    131,779.86x = 20,115,024,007.35
  5. Step 5: Solve for x
    x = 20,115,024,007.35/131,779.86
  6. Step 6: Final answer
    x = 152,641.11

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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.