Home / 139,764.60-209,679.39-39,926.16

Finding the Fourth Proportional to 139,764.60, 209,679.39 and 39,926.16

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Solution

The fourth proportional to 139,764.60, 209,679.39 and 39,926.16 is: 59,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,764.60 : 209,679.39 = 39,926.16 : x
  2. Step 2: Convert to fraction form
    139,764.60/209,679.39 = 39,926.16/x
  3. Step 3: Cross multiply
    139,764.60x = 209,679.39 × 39,926.16
  4. Step 4: Simplify right side
    139,764.60x = 8,371,692,873.84
  5. Step 5: Solve for x
    x = 8,371,692,873.84/139,764.60
  6. Step 6: Final answer
    x = 59,898.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.