Home / 131,063.60-196,741.20-72,014.60

Finding the Fourth Proportional to 131,063.60, 196,741.20 and 72,014.60

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Solution

The fourth proportional to 131,063.60, 196,741.20 and 72,014.60 is: 108,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,063.60 : 196,741.20 = 72,014.60 : x
  2. Step 2: Convert to fraction form
    131,063.60/196,741.20 = 72,014.60/x
  3. Step 3: Cross multiply
    131,063.60x = 196,741.20 × 72,014.60
  4. Step 4: Simplify right side
    131,063.60x = 14,168,238,821.52
  5. Step 5: Solve for x
    x = 14,168,238,821.52/131,063.60
  6. Step 6: Final answer
    x = 108,102.01

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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.