Home / 105,678.76-145,836.82-57,933.84

Finding the Fourth Proportional to 105,678.76, 145,836.82 and 57,933.84

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Solution

The fourth proportional to 105,678.76, 145,836.82 and 57,933.84 is: 79,948.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,678.76 : 145,836.82 = 57,933.84 : x
  2. Step 2: Convert to fraction form
    105,678.76/145,836.82 = 57,933.84/x
  3. Step 3: Cross multiply
    105,678.76x = 145,836.82 × 57,933.84
  4. Step 4: Simplify right side
    105,678.76x = 8,448,886,995.99
  5. Step 5: Solve for x
    x = 8,448,886,995.99/105,678.76
  6. Step 6: Final answer
    x = 79,948.77

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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.