Home / 135,238.47-186,614.73-74,799.51

Finding the Fourth Proportional to 135,238.47, 186,614.73 and 74,799.51

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Solution

The fourth proportional to 135,238.47, 186,614.73 and 74,799.51 is: 103,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,238.47 : 186,614.73 = 74,799.51 : x
  2. Step 2: Convert to fraction form
    135,238.47/186,614.73 = 74,799.51/x
  3. Step 3: Cross multiply
    135,238.47x = 186,614.73 × 74,799.51
  4. Step 4: Simplify right side
    135,238.47x = 13,958,690,362.78
  5. Step 5: Solve for x
    x = 13,958,690,362.78/135,238.47
  6. Step 6: Final answer
    x = 103,215.38

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1.5x scale

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.