Home / 139,821.84-209,588.76-60,921.36

Finding the Fourth Proportional to 139,821.84, 209,588.76 and 60,921.36

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Solution

The fourth proportional to 139,821.84, 209,588.76 and 60,921.36 is: 91,319.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,821.84 : 209,588.76 = 60,921.36 : x
  2. Step 2: Convert to fraction form
    139,821.84/209,588.76 = 60,921.36/x
  3. Step 3: Cross multiply
    139,821.84x = 209,588.76 × 60,921.36
  4. Step 4: Simplify right side
    139,821.84x = 12,768,432,299.91
  5. Step 5: Solve for x
    x = 12,768,432,299.91/139,821.84
  6. Step 6: Final answer
    x = 91,319.30

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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.