Home / 133,041.16-199,554.45-80,436.52

Finding the Fourth Proportional to 133,041.16, 199,554.45 and 80,436.52

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Solution

The fourth proportional to 133,041.16, 199,554.45 and 80,436.52 is: 120,650.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,041.16 : 199,554.45 = 80,436.52 : x
  2. Step 2: Convert to fraction form
    133,041.16/199,554.45 = 80,436.52/x
  3. Step 3: Cross multiply
    133,041.16x = 199,554.45 × 80,436.52
  4. Step 4: Simplify right side
    133,041.16x = 16,051,465,508.51
  5. Step 5: Solve for x
    x = 16,051,465,508.51/133,041.16
  6. Step 6: Final answer
    x = 120,650.37

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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.