Home / 103,452.47-155,179.20-31,406.00

Finding the Fourth Proportional to 103,452.47, 155,179.20 and 31,406.00

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Solution

The fourth proportional to 103,452.47, 155,179.20 and 31,406.00 is: 47,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,452.47 : 155,179.20 = 31,406.00 : x
  2. Step 2: Convert to fraction form
    103,452.47/155,179.20 = 31,406.00/x
  3. Step 3: Cross multiply
    103,452.47x = 155,179.20 × 31,406.00
  4. Step 4: Simplify right side
    103,452.47x = 4,873,558,343.15
  5. Step 5: Solve for x
    x = 4,873,558,343.15/103,452.47
  6. Step 6: Final answer
    x = 47,109.16

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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.