Home / 131,056.60-196,730.70-72,007.60

Finding the Fourth Proportional to 131,056.60, 196,730.70 and 72,007.60

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Solution

The fourth proportional to 131,056.60, 196,730.70 and 72,007.60 is: 108,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,056.60 : 196,730.70 = 72,007.60 : x
  2. Step 2: Convert to fraction form
    131,056.60/196,730.70 = 72,007.60/x
  3. Step 3: Cross multiply
    131,056.60x = 196,730.70 × 72,007.60
  4. Step 4: Simplify right side
    131,056.60x = 14,166,105,553.32
  5. Step 5: Solve for x
    x = 14,166,105,553.32/131,056.60
  6. Step 6: Final answer
    x = 108,091.51

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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.