Home / 245,483.29-338,761.63-142,121.85

Finding the Fourth Proportional to 245,483.29, 338,761.63 and 142,121.85

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Solution

The fourth proportional to 245,483.29, 338,761.63 and 142,121.85 is: 196,125.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,483.29 : 338,761.63 = 142,121.85 : x
  2. Step 2: Convert to fraction form
    245,483.29/338,761.63 = 142,121.85/x
  3. Step 3: Cross multiply
    245,483.29x = 338,761.63 × 142,121.85
  4. Step 4: Simplify right side
    245,483.29x = 48,145,427,160.20
  5. Step 5: Solve for x
    x = 48,145,427,160.20/245,483.29
  6. Step 6: Final answer
    x = 196,125.07

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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.