Home / 135,068.60-186,405.89-74,651.04

Finding the Fourth Proportional to 135,068.60, 186,405.89 and 74,651.04

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Solution

The fourth proportional to 135,068.60, 186,405.89 and 74,651.04 is: 103,024.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,068.60 : 186,405.89 = 74,651.04 : x
  2. Step 2: Convert to fraction form
    135,068.60/186,405.89 = 74,651.04/x
  3. Step 3: Cross multiply
    135,068.60x = 186,405.89 × 74,651.04
  4. Step 4: Simplify right side
    135,068.60x = 13,915,393,550.63
  5. Step 5: Solve for x
    x = 13,915,393,550.63/135,068.60
  6. Step 6: Final answer
    x = 103,024.64

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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.