Home / 105,914.81-146,161.88-57,516.32

Finding the Fourth Proportional to 105,914.81, 146,161.88 and 57,516.32

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Solution

The fourth proportional to 105,914.81, 146,161.88 and 57,516.32 is: 79,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,914.81 : 146,161.88 = 57,516.32 : x
  2. Step 2: Convert to fraction form
    105,914.81/146,161.88 = 57,516.32/x
  3. Step 3: Cross multiply
    105,914.81x = 146,161.88 × 57,516.32
  4. Step 4: Simplify right side
    105,914.81x = 8,406,693,539.70
  5. Step 5: Solve for x
    x = 8,406,693,539.70/105,914.81
  6. Step 6: Final answer
    x = 79,372.22

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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.