Home / 125,639.30-173,357.52-74,667.62

Finding the Fourth Proportional to 125,639.30, 173,357.52 and 74,667.62

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Solution

The fourth proportional to 125,639.30, 173,357.52 and 74,667.62 is: 103,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,639.30 : 173,357.52 = 74,667.62 : x
  2. Step 2: Convert to fraction form
    125,639.30/173,357.52 = 74,667.62/x
  3. Step 3: Cross multiply
    125,639.30x = 173,357.52 × 74,667.62
  4. Step 4: Simplify right side
    125,639.30x = 12,944,193,427.50
  5. Step 5: Solve for x
    x = 12,944,193,427.50/125,639.30
  6. Step 6: Final answer
    x = 103,026.63

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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.