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Finding the Fourth Proportional to 121,011.92, 181,536.60 and 37,898

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Solution

The fourth proportional to 121,011.92, 181,536.60 and 37,898 is: 56,852.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,011.92 : 181,536.60 = 37,898 : x
  2. Step 2: Convert to fraction form
    121,011.92/181,536.60 = 37,898/x
  3. Step 3: Cross multiply
    121,011.92x = 181,536.60 × 37,898
  4. Step 4: Simplify right side
    121,011.92x = 6,879,874,066.80
  5. Step 5: Solve for x
    x = 6,879,874,066.80/121,011.92
  6. Step 6: Final answer
    x = 56,852.86

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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.