Home / 129,104.20-193,802.10-99,652.60

Finding the Fourth Proportional to 129,104.20, 193,802.10 and 99,652.60

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Solution

The fourth proportional to 129,104.20, 193,802.10 and 99,652.60 is: 149,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,104.20 : 193,802.10 = 99,652.60 : x
  2. Step 2: Convert to fraction form
    129,104.20/193,802.10 = 99,652.60/x
  3. Step 3: Cross multiply
    129,104.20x = 193,802.10 × 99,652.60
  4. Step 4: Simplify right side
    129,104.20x = 19,312,883,150.46
  5. Step 5: Solve for x
    x = 19,312,883,150.46/129,104.20
  6. Step 6: Final answer
    x = 149,591.44

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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.