Home / 102,740.69-154,110.83-38,710.80

Finding the Fourth Proportional to 102,740.69, 154,110.83 and 38,710.80

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Solution

The fourth proportional to 102,740.69, 154,110.83 and 38,710.80 is: 58,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,740.69 : 154,110.83 = 38,710.80 : x
  2. Step 2: Convert to fraction form
    102,740.69/154,110.83 = 38,710.80/x
  3. Step 3: Cross multiply
    102,740.69x = 154,110.83 × 38,710.80
  4. Step 4: Simplify right side
    102,740.69x = 5,965,753,324.41
  5. Step 5: Solve for x
    x = 5,965,753,324.41/102,740.69
  6. Step 6: Final answer
    x = 58,066.12

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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.