Home / 135,008.32-186,310.74-74,583.12

Finding the Fourth Proportional to 135,008.32, 186,310.74 and 74,583.12

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Solution

The fourth proportional to 135,008.32, 186,310.74 and 74,583.12 is: 102,924.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,008.32 : 186,310.74 = 74,583.12 : x
  2. Step 2: Convert to fraction form
    135,008.32/186,310.74 = 74,583.12/x
  3. Step 3: Cross multiply
    135,008.32x = 186,310.74 × 74,583.12
  4. Step 4: Simplify right side
    135,008.32x = 13,895,636,278.71
  5. Step 5: Solve for x
    x = 13,895,636,278.71/135,008.32
  6. Step 6: Final answer
    x = 102,924.30

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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.