Home / 134,903.05-186,166.49-74,473.78

Finding the Fourth Proportional to 134,903.05, 186,166.49 and 74,473.78

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Solution

The fourth proportional to 134,903.05, 186,166.49 and 74,473.78 is: 102,773.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,903.05 : 186,166.49 = 74,473.78 : x
  2. Step 2: Convert to fraction form
    134,903.05/186,166.49 = 74,473.78/x
  3. Step 3: Cross multiply
    134,903.05x = 186,166.49 × 74,473.78
  4. Step 4: Simplify right side
    134,903.05x = 13,864,521,381.85
  5. Step 5: Solve for x
    x = 13,864,521,381.85/134,903.05
  6. Step 6: Final answer
    x = 102,773.97

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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.