Home / 151,477.43-209,029.34-83,490.65

Finding the Fourth Proportional to 151,477.43, 209,029.34 and 83,490.65

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Solution

The fourth proportional to 151,477.43, 209,029.34 and 83,490.65 is: 115,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,477.43 : 209,029.34 = 83,490.65 : x
  2. Step 2: Convert to fraction form
    151,477.43/209,029.34 = 83,490.65/x
  3. Step 3: Cross multiply
    151,477.43x = 209,029.34 × 83,490.65
  4. Step 4: Simplify right side
    151,477.43x = 17,451,996,119.27
  5. Step 5: Solve for x
    x = 17,451,996,119.27/151,477.43
  6. Step 6: Final answer
    x = 115,211.86

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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.