Home / 133,390.08-183,898.17-85,560.39

Finding the Fourth Proportional to 133,390.08, 183,898.17 and 85,560.39

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Solution

The fourth proportional to 133,390.08, 183,898.17 and 85,560.39 is: 117,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,390.08 : 183,898.17 = 85,560.39 : x
  2. Step 2: Convert to fraction form
    133,390.08/183,898.17 = 85,560.39/x
  3. Step 3: Cross multiply
    133,390.08x = 183,898.17 × 85,560.39
  4. Step 4: Simplify right side
    133,390.08x = 15,734,399,145.49
  5. Step 5: Solve for x
    x = 15,734,399,145.49/133,390.08
  6. Step 6: Final answer
    x = 117,957.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.