Home / 135,302.16-186,792.06-81,600.84

Finding the Fourth Proportional to 135,302.16, 186,792.06 and 81,600.84

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Solution

The fourth proportional to 135,302.16, 186,792.06 and 81,600.84 is: 112,654.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,302.16 : 186,792.06 = 81,600.84 : x
  2. Step 2: Convert to fraction form
    135,302.16/186,792.06 = 81,600.84/x
  3. Step 3: Cross multiply
    135,302.16x = 186,792.06 × 81,600.84
  4. Step 4: Simplify right side
    135,302.16x = 15,242,389,001.33
  5. Step 5: Solve for x
    x = 15,242,389,001.33/135,302.16
  6. Step 6: Final answer
    x = 112,654.44

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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.