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Finding the Fourth Proportional to 125,662.05, 173,411.69 and 69,072.21

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Solution

The fourth proportional to 125,662.05, 173,411.69 and 69,072.21 is: 95,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,662.05 : 173,411.69 = 69,072.21 : x
  2. Step 2: Convert to fraction form
    125,662.05/173,411.69 = 69,072.21/x
  3. Step 3: Cross multiply
    125,662.05x = 173,411.69 × 69,072.21
  4. Step 4: Simplify right side
    125,662.05x = 11,977,928,322.77
  5. Step 5: Solve for x
    x = 11,977,928,322.77/125,662.05
  6. Step 6: Final answer
    x = 95,318.58

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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.