Home / 134,631.48-185,784.22-74,190.09

Finding the Fourth Proportional to 134,631.48, 185,784.22 and 74,190.09

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Solution

The fourth proportional to 134,631.48, 185,784.22 and 74,190.09 is: 102,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,631.48 : 185,784.22 = 74,190.09 : x
  2. Step 2: Convert to fraction form
    134,631.48/185,784.22 = 74,190.09/x
  3. Step 3: Cross multiply
    134,631.48x = 185,784.22 × 74,190.09
  4. Step 4: Simplify right side
    134,631.48x = 13,783,348,002.38
  5. Step 5: Solve for x
    x = 13,783,348,002.38/134,631.48
  6. Step 6: Final answer
    x = 102,378.34

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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.