Home / 135,158.34-186,502.23-74,720.82

Finding the Fourth Proportional to 135,158.34, 186,502.23 and 74,720.82

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Solution

The fourth proportional to 135,158.34, 186,502.23 and 74,720.82 is: 103,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158.34 : 186,502.23 = 74,720.82 : x
  2. Step 2: Convert to fraction form
    135,158.34/186,502.23 = 74,720.82/x
  3. Step 3: Cross multiply
    135,158.34x = 186,502.23 × 74,720.82
  4. Step 4: Simplify right side
    135,158.34x = 13,935,599,557.43
  5. Step 5: Solve for x
    x = 13,935,599,557.43/135,158.34
  6. Step 6: Final answer
    x = 103,105.73

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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.