Home / 384,126.05-576,189.07-103,643.30

Finding the Fourth Proportional to 384,126.05, 576,189.07 and 103,643.30

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Solution

The fourth proportional to 384,126.05, 576,189.07 and 103,643.30 is: 155,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,126.05 : 576,189.07 = 103,643.30 : x
  2. Step 2: Convert to fraction form
    384,126.05/576,189.07 = 103,643.30/x
  3. Step 3: Cross multiply
    384,126.05x = 576,189.07 × 103,643.30
  4. Step 4: Simplify right side
    384,126.05x = 59,718,134,870.53
  5. Step 5: Solve for x
    x = 59,718,134,870.53/384,126.05
  6. Step 6: Final answer
    x = 155,464.95

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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.