Home / 134,991.32-186,287.28-74,566.12

Finding the Fourth Proportional to 134,991.32, 186,287.28 and 74,566.12

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Solution

The fourth proportional to 134,991.32, 186,287.28 and 74,566.12 is: 102,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,991.32 : 186,287.28 = 74,566.12 : x
  2. Step 2: Convert to fraction form
    134,991.32/186,287.28 = 74,566.12/x
  3. Step 3: Cross multiply
    134,991.32x = 186,287.28 × 74,566.12
  4. Step 4: Simplify right side
    134,991.32x = 13,890,719,674.95
  5. Step 5: Solve for x
    x = 13,890,719,674.95/134,991.32
  6. Step 6: Final answer
    x = 102,900.84

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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.