Home / 134,880.35-186,134.89-74,451.01

Finding the Fourth Proportional to 134,880.35, 186,134.89 and 74,451.01

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Solution

The fourth proportional to 134,880.35, 186,134.89 and 74,451.01 is: 102,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,880.35 : 186,134.89 = 74,451.01 : x
  2. Step 2: Convert to fraction form
    134,880.35/186,134.89 = 74,451.01/x
  3. Step 3: Cross multiply
    134,880.35x = 186,134.89 × 74,451.01
  4. Step 4: Simplify right side
    134,880.35x = 13,857,929,253.81
  5. Step 5: Solve for x
    x = 13,857,929,253.81/134,880.35
  6. Step 6: Final answer
    x = 102,742.39

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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.