Home / 162,127.72-242,693.31-138,212.92

Finding the Fourth Proportional to 162,127.72, 242,693.31 and 138,212.92

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Solution

The fourth proportional to 162,127.72, 242,693.31 and 138,212.92 is: 206,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,127.72 : 242,693.31 = 138,212.92 : x
  2. Step 2: Convert to fraction form
    162,127.72/242,693.31 = 138,212.92/x
  3. Step 3: Cross multiply
    162,127.72x = 242,693.31 × 138,212.92
  4. Step 4: Simplify right side
    162,127.72x = 33,543,351,039.57
  5. Step 5: Solve for x
    x = 33,543,351,039.57/162,127.72
  6. Step 6: Final answer
    x = 206,894.61

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1.5x scale

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.