Home / 135,243.17-186,632.21-74,817.17

Finding the Fourth Proportional to 135,243.17, 186,632.21 and 74,817.17

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Solution

The fourth proportional to 135,243.17, 186,632.21 and 74,817.17 is: 103,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,243.17 : 186,632.21 = 74,817.17 : x
  2. Step 2: Convert to fraction form
    135,243.17/186,632.21 = 74,817.17/x
  3. Step 3: Cross multiply
    135,243.17x = 186,632.21 × 74,817.17
  4. Step 4: Simplify right side
    135,243.17x = 13,963,293,408.96
  5. Step 5: Solve for x
    x = 13,963,293,408.96/135,243.17
  6. Step 6: Final answer
    x = 103,245.83

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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.