Home / 131,185.40-196,778.10-104,941.40

Finding the Fourth Proportional to 131,185.40, 196,778.10 and 104,941.40

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Solution

The fourth proportional to 131,185.40, 196,778.10 and 104,941.40 is: 157,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,185.40 : 196,778.10 = 104,941.40 : x
  2. Step 2: Convert to fraction form
    131,185.40/196,778.10 = 104,941.40/x
  3. Step 3: Cross multiply
    131,185.40x = 196,778.10 × 104,941.40
  4. Step 4: Simplify right side
    131,185.40x = 20,650,169,303.34
  5. Step 5: Solve for x
    x = 20,650,169,303.34/131,185.40
  6. Step 6: Final answer
    x = 157,412.10

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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.