Home / 123,765.13-185,617.95-57,141.25

Finding the Fourth Proportional to 123,765.13, 185,617.95 and 57,141.25

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Solution

The fourth proportional to 123,765.13, 185,617.95 and 57,141.25 is: 85,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,765.13 : 185,617.95 = 57,141.25 : x
  2. Step 2: Convert to fraction form
    123,765.13/185,617.95 = 57,141.25/x
  3. Step 3: Cross multiply
    123,765.13x = 185,617.95 × 57,141.25
  4. Step 4: Simplify right side
    123,765.13x = 10,606,441,685.44
  5. Step 5: Solve for x
    x = 10,606,441,685.44/123,765.13
  6. Step 6: Final answer
    x = 85,698.14

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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.