Home / 123,975.60-171,130.20-73,674

Finding the Fourth Proportional to 123,975.60, 171,130.20 and 73,674

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Solution

The fourth proportional to 123,975.60, 171,130.20 and 73,674 is: 101,696.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,975.60 : 171,130.20 = 73,674 : x
  2. Step 2: Convert to fraction form
    123,975.60/171,130.20 = 73,674/x
  3. Step 3: Cross multiply
    123,975.60x = 171,130.20 × 73,674
  4. Step 4: Simplify right side
    123,975.60x = 12,607,846,354.80
  5. Step 5: Solve for x
    x = 12,607,846,354.80/123,975.60
  6. Step 6: Final answer
    x = 101,696.19

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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.