Home / 109,178.10-150,668.72-61,433.14

Finding the Fourth Proportional to 109,178.10, 150,668.72 and 61,433.14

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Solution

The fourth proportional to 109,178.10, 150,668.72 and 61,433.14 is: 84,779.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,178.10 : 150,668.72 = 61,433.14 : x
  2. Step 2: Convert to fraction form
    109,178.10/150,668.72 = 61,433.14/x
  3. Step 3: Cross multiply
    109,178.10x = 150,668.72 × 61,433.14
  4. Step 4: Simplify right side
    109,178.10x = 9,256,052,569.38
  5. Step 5: Solve for x
    x = 9,256,052,569.38/109,178.10
  6. Step 6: Final answer
    x = 84,779.39

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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.