Home / 135,174.16-186,536.64-74,747.26

Finding the Fourth Proportional to 135,174.16, 186,536.64 and 74,747.26

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Solution

The fourth proportional to 135,174.16, 186,536.64 and 74,747.26 is: 103,149.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,174.16 : 186,536.64 = 74,747.26 : x
  2. Step 2: Convert to fraction form
    135,174.16/186,536.64 = 74,747.26/x
  3. Step 3: Cross multiply
    135,174.16x = 186,536.64 × 74,747.26
  4. Step 4: Simplify right side
    135,174.16x = 13,943,102,729.61
  5. Step 5: Solve for x
    x = 13,943,102,729.61/135,174.16
  6. Step 6: Final answer
    x = 103,149.17

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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.