Home / 105,673.38-158,530.79-39,114.07

Finding the Fourth Proportional to 105,673.38, 158,530.79 and 39,114.07

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Solution

The fourth proportional to 105,673.38, 158,530.79 and 39,114.07 is: 58,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,673.38 : 158,530.79 = 39,114.07 : x
  2. Step 2: Convert to fraction form
    105,673.38/158,530.79 = 39,114.07/x
  3. Step 3: Cross multiply
    105,673.38x = 158,530.79 × 39,114.07
  4. Step 4: Simplify right side
    105,673.38x = 6,200,784,417.22
  5. Step 5: Solve for x
    x = 6,200,784,417.22/105,673.38
  6. Step 6: Final answer
    x = 58,678.77

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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.