Home / 104,742.60-156,941.10-89,190.60

Finding the Fourth Proportional to 104,742.60, 156,941.10 and 89,190.60

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Solution

The fourth proportional to 104,742.60, 156,941.10 and 89,190.60 is: 133,638.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,742.60 : 156,941.10 = 89,190.60 : x
  2. Step 2: Convert to fraction form
    104,742.60/156,941.10 = 89,190.60/x
  3. Step 3: Cross multiply
    104,742.60x = 156,941.10 × 89,190.60
  4. Step 4: Simplify right side
    104,742.60x = 13,997,670,873.66
  5. Step 5: Solve for x
    x = 13,997,670,873.66/104,742.60
  6. Step 6: Final answer
    x = 133,638.76

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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.