Home / 123,589.58-170,463.03-81,132.62

Finding the Fourth Proportional to 123,589.58, 170,463.03 and 81,132.62

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Solution

The fourth proportional to 123,589.58, 170,463.03 and 81,132.62 is: 111,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,589.58 : 170,463.03 = 81,132.62 : x
  2. Step 2: Convert to fraction form
    123,589.58/170,463.03 = 81,132.62/x
  3. Step 3: Cross multiply
    123,589.58x = 170,463.03 × 81,132.62
  4. Step 4: Simplify right side
    123,589.58x = 13,830,112,237.04
  5. Step 5: Solve for x
    x = 13,830,112,237.04/123,589.58
  6. Step 6: Final answer
    x = 111,903.55

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1.5x scale

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.