Home / 125,670.12-173,424.78-71,972.94

Finding the Fourth Proportional to 125,670.12, 173,424.78 and 71,972.94

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Solution

The fourth proportional to 125,670.12, 173,424.78 and 71,972.94 is: 99,322.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,670.12 : 173,424.78 = 71,972.94 : x
  2. Step 2: Convert to fraction form
    125,670.12/173,424.78 = 71,972.94/x
  3. Step 3: Cross multiply
    125,670.12x = 173,424.78 × 71,972.94
  4. Step 4: Simplify right side
    125,670.12x = 12,481,891,285.45
  5. Step 5: Solve for x
    x = 12,481,891,285.45/125,670.12
  6. Step 6: Final answer
    x = 99,322.67

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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.