Home / 131,038.63-196,262.60-91,771.04

Finding the Fourth Proportional to 131,038.63, 196,262.60 and 91,771.04

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Solution

The fourth proportional to 131,038.63, 196,262.60 and 91,771.04 is: 137,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,038.63 : 196,262.60 = 91,771.04 : x
  2. Step 2: Convert to fraction form
    131,038.63/196,262.60 = 91,771.04/x
  3. Step 3: Cross multiply
    131,038.63x = 196,262.60 × 91,771.04
  4. Step 4: Simplify right side
    131,038.63x = 18,011,222,946.91
  5. Step 5: Solve for x
    x = 18,011,222,946.91/131,038.63
  6. Step 6: Final answer
    x = 137,449.72

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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.