Home / 135,370.23-186,752.25-81,625.38

Finding the Fourth Proportional to 135,370.23, 186,752.25 and 81,625.38

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Solution

The fourth proportional to 135,370.23, 186,752.25 and 81,625.38 is: 112,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,370.23 : 186,752.25 = 81,625.38 : x
  2. Step 2: Convert to fraction form
    135,370.23/186,752.25 = 81,625.38/x
  3. Step 3: Cross multiply
    135,370.23x = 186,752.25 × 81,625.38
  4. Step 4: Simplify right side
    135,370.23x = 15,243,723,372.11
  5. Step 5: Solve for x
    x = 15,243,723,372.11/135,370.23
  6. Step 6: Final answer
    x = 112,607.65

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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.