Home / 187,428.95-281,143.44-54,309.30

Finding the Fourth Proportional to 187,428.95, 281,143.44 and 54,309.30

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Solution

The fourth proportional to 187,428.95, 281,143.44 and 54,309.30 is: 81,463.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,428.95 : 281,143.44 = 54,309.30 : x
  2. Step 2: Convert to fraction form
    187,428.95/281,143.44 = 54,309.30/x
  3. Step 3: Cross multiply
    187,428.95x = 281,143.44 × 54,309.30
  4. Step 4: Simplify right side
    187,428.95x = 15,268,703,425.99
  5. Step 5: Solve for x
    x = 15,268,703,425.99/187,428.95
  6. Step 6: Final answer
    x = 81,463.95

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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.