Home / 134,799.72-186,022.41-74,370.90

Finding the Fourth Proportional to 134,799.72, 186,022.41 and 74,370.90

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Solution

The fourth proportional to 134,799.72, 186,022.41 and 74,370.90 is: 102,631.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,799.72 : 186,022.41 = 74,370.90 : x
  2. Step 2: Convert to fraction form
    134,799.72/186,022.41 = 74,370.90/x
  3. Step 3: Cross multiply
    134,799.72x = 186,022.41 × 74,370.90
  4. Step 4: Simplify right side
    134,799.72x = 13,834,654,051.87
  5. Step 5: Solve for x
    x = 13,834,654,051.87/134,799.72
  6. Step 6: Final answer
    x = 102,631.18

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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.