Home / 147,401.81-203,421.71-82,891.35

Finding the Fourth Proportional to 147,401.81, 203,421.71 and 82,891.35

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Solution

The fourth proportional to 147,401.81, 203,421.71 and 82,891.35 is: 114,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,401.81 : 203,421.71 = 82,891.35 : x
  2. Step 2: Convert to fraction form
    147,401.81/203,421.71 = 82,891.35/x
  3. Step 3: Cross multiply
    147,401.81x = 203,421.71 × 82,891.35
  4. Step 4: Simplify right side
    147,401.81x = 16,861,900,368.44
  5. Step 5: Solve for x
    x = 16,861,900,368.44/147,401.81
  6. Step 6: Final answer
    x = 114,394.12

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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.