Home / 135,052.08-186,368.64-74,619.60

Finding the Fourth Proportional to 135,052.08, 186,368.64 and 74,619.60

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Solution

The fourth proportional to 135,052.08, 186,368.64 and 74,619.60 is: 102,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,052.08 : 186,368.64 = 74,619.60 : x
  2. Step 2: Convert to fraction form
    135,052.08/186,368.64 = 74,619.60/x
  3. Step 3: Cross multiply
    135,052.08x = 186,368.64 × 74,619.60
  4. Step 4: Simplify right side
    135,052.08x = 13,906,753,369.34
  5. Step 5: Solve for x
    x = 13,906,753,369.34/135,052.08
  6. Step 6: Final answer
    x = 102,973.26

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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.