Home / 99,325.80-148,985.37-43,165.90

Finding the Fourth Proportional to 99,325.80, 148,985.37 and 43,165.90

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Solution

The fourth proportional to 99,325.80, 148,985.37 and 43,165.90 is: 64,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,325.80 : 148,985.37 = 43,165.90 : x
  2. Step 2: Convert to fraction form
    99,325.80/148,985.37 = 43,165.90/x
  3. Step 3: Cross multiply
    99,325.80x = 148,985.37 × 43,165.90
  4. Step 4: Simplify right side
    99,325.80x = 6,431,087,582.88
  5. Step 5: Solve for x
    x = 6,431,087,582.88/99,325.80
  6. Step 6: Final answer
    x = 64,747.40

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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.