Home / 243,164.48-335,560-135,732.22

Finding the Fourth Proportional to 243,164.48, 335,560 and 135,732.22

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Solution

The fourth proportional to 243,164.48, 335,560 and 135,732.22 is: 187,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,164.48 : 335,560 = 135,732.22 : x
  2. Step 2: Convert to fraction form
    243,164.48/335,560 = 135,732.22/x
  3. Step 3: Cross multiply
    243,164.48x = 335,560 × 135,732.22
  4. Step 4: Simplify right side
    243,164.48x = 45,546,303,743.20
  5. Step 5: Solve for x
    x = 45,546,303,743.20/243,164.48
  6. Step 6: Final answer
    x = 187,306.57

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1.5x scale

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.