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Finding the Fourth Proportional to 131,775.96, 181,850.93 and 71,346.64

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Solution

The fourth proportional to 131,775.96, 181,850.93 and 71,346.64 is: 98,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,775.96 : 181,850.93 = 71,346.64 : x
  2. Step 2: Convert to fraction form
    131,775.96/181,850.93 = 71,346.64/x
  3. Step 3: Cross multiply
    131,775.96x = 181,850.93 × 71,346.64
  4. Step 4: Simplify right side
    131,775.96x = 12,974,452,836.38
  5. Step 5: Solve for x
    x = 12,974,452,836.38/131,775.96
  6. Step 6: Final answer
    x = 98,458.42

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1.5x scale

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.