Home / 129,205.86-193,808.76-40,466.28

Finding the Fourth Proportional to 129,205.86, 193,808.76 and 40,466.28

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Solution

The fourth proportional to 129,205.86, 193,808.76 and 40,466.28 is: 60,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,205.86 : 193,808.76 = 40,466.28 : x
  2. Step 2: Convert to fraction form
    129,205.86/193,808.76 = 40,466.28/x
  3. Step 3: Cross multiply
    129,205.86x = 193,808.76 × 40,466.28
  4. Step 4: Simplify right side
    129,205.86x = 7,842,719,548.61
  5. Step 5: Solve for x
    x = 7,842,719,548.61/129,205.86
  6. Step 6: Final answer
    x = 60,699.41

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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.