Home / 105,881.81-146,116.99-57,483.70

Finding the Fourth Proportional to 105,881.81, 146,116.99 and 57,483.70

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Solution

The fourth proportional to 105,881.81, 146,116.99 and 57,483.70 is: 79,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,881.81 : 146,116.99 = 57,483.70 : x
  2. Step 2: Convert to fraction form
    105,881.81/146,116.99 = 57,483.70/x
  3. Step 3: Cross multiply
    105,881.81x = 146,116.99 × 57,483.70
  4. Step 4: Simplify right side
    105,881.81x = 8,399,345,218.06
  5. Step 5: Solve for x
    x = 8,399,345,218.06/105,881.81
  6. Step 6: Final answer
    x = 79,327.56

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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.