Home / 131,182.51-196,779.91-42,442.96

Finding the Fourth Proportional to 131,182.51, 196,779.91 and 42,442.96

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Solution

The fourth proportional to 131,182.51, 196,779.91 and 42,442.96 is: 63,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,182.51 : 196,779.91 = 42,442.96 : x
  2. Step 2: Convert to fraction form
    131,182.51/196,779.91 = 42,442.96/x
  3. Step 3: Cross multiply
    131,182.51x = 196,779.91 × 42,442.96
  4. Step 4: Simplify right side
    131,182.51x = 8,351,921,250.88
  5. Step 5: Solve for x
    x = 8,351,921,250.88/131,182.51
  6. Step 6: Final answer
    x = 63,666.42

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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.