Home / 97,416.80-146,125.20-91,511.90

Finding the Fourth Proportional to 97,416.80, 146,125.20 and 91,511.90

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Solution

The fourth proportional to 97,416.80, 146,125.20 and 91,511.90 is: 137,267.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,416.80 : 146,125.20 = 91,511.90 : x
  2. Step 2: Convert to fraction form
    97,416.80/146,125.20 = 91,511.90/x
  3. Step 3: Cross multiply
    97,416.80x = 146,125.20 × 91,511.90
  4. Step 4: Simplify right side
    97,416.80x = 13,372,194,689.88
  5. Step 5: Solve for x
    x = 13,372,194,689.88/97,416.80
  6. Step 6: Final answer
    x = 137,267.85

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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.