Home / 123,581.09-185,327.80-53,422.13

Finding the Fourth Proportional to 123,581.09, 185,327.80 and 53,422.13

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Solution

The fourth proportional to 123,581.09, 185,327.80 and 53,422.13 is: 80,114.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,581.09 : 185,327.80 = 53,422.13 : x
  2. Step 2: Convert to fraction form
    123,581.09/185,327.80 = 53,422.13/x
  3. Step 3: Cross multiply
    123,581.09x = 185,327.80 × 53,422.13
  4. Step 4: Simplify right side
    123,581.09x = 9,900,606,153.98
  5. Step 5: Solve for x
    x = 9,900,606,153.98/123,581.09
  6. Step 6: Final answer
    x = 80,114.25

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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.