Home / 131,239.31-196,890.32-42,492.91

Finding the Fourth Proportional to 131,239.31, 196,890.32 and 42,492.91

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Solution

The fourth proportional to 131,239.31, 196,890.32 and 42,492.91 is: 63,749.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239.31 : 196,890.32 = 42,492.91 : x
  2. Step 2: Convert to fraction form
    131,239.31/196,890.32 = 42,492.91/x
  3. Step 3: Cross multiply
    131,239.31x = 196,890.32 × 42,492.91
  4. Step 4: Simplify right side
    131,239.31x = 8,366,442,647.63
  5. Step 5: Solve for x
    x = 8,366,442,647.63/131,239.31
  6. Step 6: Final answer
    x = 63,749.52

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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.