Home / 135,459.51-186,932.05-74,205.23

Finding the Fourth Proportional to 135,459.51, 186,932.05 and 74,205.23

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Solution

The fourth proportional to 135,459.51, 186,932.05 and 74,205.23 is: 102,402.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,459.51 : 186,932.05 = 74,205.23 : x
  2. Step 2: Convert to fraction form
    135,459.51/186,932.05 = 74,205.23/x
  3. Step 3: Cross multiply
    135,459.51x = 186,932.05 × 74,205.23
  4. Step 4: Simplify right side
    135,459.51x = 13,871,335,764.62
  5. Step 5: Solve for x
    x = 13,871,335,764.62/135,459.51
  6. Step 6: Final answer
    x = 102,402.08

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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.