Home / 147,119.49-203,039.87-86,709.62

Finding the Fourth Proportional to 147,119.49, 203,039.87 and 86,709.62

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Solution

The fourth proportional to 147,119.49, 203,039.87 and 86,709.62 is: 119,668.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,119.49 : 203,039.87 = 86,709.62 : x
  2. Step 2: Convert to fraction form
    147,119.49/203,039.87 = 86,709.62/x
  3. Step 3: Cross multiply
    147,119.49x = 203,039.87 × 86,709.62
  4. Step 4: Simplify right side
    147,119.49x = 17,605,510,046.60
  5. Step 5: Solve for x
    x = 17,605,510,046.60/147,119.49
  6. Step 6: Final answer
    x = 119,668.10

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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.