Home / 135,222.68-186,605.70-74,788.58

Finding the Fourth Proportional to 135,222.68, 186,605.70 and 74,788.58

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Solution

The fourth proportional to 135,222.68, 186,605.70 and 74,788.58 is: 103,207.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,222.68 : 186,605.70 = 74,788.58 : x
  2. Step 2: Convert to fraction form
    135,222.68/186,605.70 = 74,788.58/x
  3. Step 3: Cross multiply
    135,222.68x = 186,605.70 × 74,788.58
  4. Step 4: Simplify right side
    135,222.68x = 13,955,975,322.91
  5. Step 5: Solve for x
    x = 13,955,975,322.91/135,222.68
  6. Step 6: Final answer
    x = 103,207.36

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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.