Home / 243,104.90-335,501.60-135,695.86

Finding the Fourth Proportional to 243,104.90, 335,501.60 and 135,695.86

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Solution

The fourth proportional to 243,104.90, 335,501.60 and 135,695.86 is: 187,269.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,104.90 : 335,501.60 = 135,695.86 : x
  2. Step 2: Convert to fraction form
    243,104.90/335,501.60 = 135,695.86/x
  3. Step 3: Cross multiply
    243,104.90x = 335,501.60 × 135,695.86
  4. Step 4: Simplify right side
    243,104.90x = 45,526,176,626.14
  5. Step 5: Solve for x
    x = 45,526,176,626.14/243,104.90
  6. Step 6: Final answer
    x = 187,269.68

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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.