Home / 134,615.05-185,767.90-74,186.17

Finding the Fourth Proportional to 134,615.05, 185,767.90 and 74,186.17

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Solution

The fourth proportional to 134,615.05, 185,767.90 and 74,186.17 is: 102,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,615.05 : 185,767.90 = 74,186.17 : x
  2. Step 2: Convert to fraction form
    134,615.05/185,767.90 = 74,186.17/x
  3. Step 3: Cross multiply
    134,615.05x = 185,767.90 × 74,186.17
  4. Step 4: Simplify right side
    134,615.05x = 13,781,409,009.94
  5. Step 5: Solve for x
    x = 13,781,409,009.94/134,615.05
  6. Step 6: Final answer
    x = 102,376.44

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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.