Home / 243,319.68-335,740.35-135,890.16

Finding the Fourth Proportional to 243,319.68, 335,740.35 and 135,890.16

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Solution

The fourth proportional to 243,319.68, 335,740.35 and 135,890.16 is: 187,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,319.68 : 335,740.35 = 135,890.16 : x
  2. Step 2: Convert to fraction form
    243,319.68/335,740.35 = 135,890.16/x
  3. Step 3: Cross multiply
    243,319.68x = 335,740.35 × 135,890.16
  4. Step 4: Simplify right side
    243,319.68x = 45,623,809,879.96
  5. Step 5: Solve for x
    x = 45,623,809,879.96/243,319.68
  6. Step 6: Final answer
    x = 187,505.63

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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.