Home / 121,450.39-182,169.81-42,558.62

Finding the Fourth Proportional to 121,450.39, 182,169.81 and 42,558.62

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Solution

The fourth proportional to 121,450.39, 182,169.81 and 42,558.62 is: 63,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,450.39 : 182,169.81 = 42,558.62 : x
  2. Step 2: Convert to fraction form
    121,450.39/182,169.81 = 42,558.62/x
  3. Step 3: Cross multiply
    121,450.39x = 182,169.81 × 42,558.62
  4. Step 4: Simplify right side
    121,450.39x = 7,752,894,808.41
  5. Step 5: Solve for x
    x = 7,752,894,808.41/121,450.39
  6. Step 6: Final answer
    x = 63,835.90

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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.