Home / 105,113.09-157,665.12-48,933.92

Finding the Fourth Proportional to 105,113.09, 157,665.12 and 48,933.92

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Solution

The fourth proportional to 105,113.09, 157,665.12 and 48,933.92 is: 73,398.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,113.09 : 157,665.12 = 48,933.92 : x
  2. Step 2: Convert to fraction form
    105,113.09/157,665.12 = 48,933.92/x
  3. Step 3: Cross multiply
    105,113.09x = 157,665.12 × 48,933.92
  4. Step 4: Simplify right side
    105,113.09x = 7,715,172,368.87
  5. Step 5: Solve for x
    x = 7,715,172,368.87/105,113.09
  6. Step 6: Final answer
    x = 73,398.78

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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.