Home / 155,921.04-233,916-72,769.68

Finding the Fourth Proportional to 155,921.04, 233,916 and 72,769.68

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Solution

The fourth proportional to 155,921.04, 233,916 and 72,769.68 is: 109,170.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,921.04 : 233,916 = 72,769.68 : x
  2. Step 2: Convert to fraction form
    155,921.04/233,916 = 72,769.68/x
  3. Step 3: Cross multiply
    155,921.04x = 233,916 × 72,769.68
  4. Step 4: Simplify right side
    155,921.04x = 17,021,992,466.88
  5. Step 5: Solve for x
    x = 17,021,992,466.88/155,921.04
  6. Step 6: Final answer
    x = 109,170.59

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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.