Home / 401,370.12-602,147.34-135,123.48

Finding the Fourth Proportional to 401,370.12, 602,147.34 and 135,123.48

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Solution

The fourth proportional to 401,370.12, 602,147.34 and 135,123.48 is: 202,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,370.12 : 602,147.34 = 135,123.48 : x
  2. Step 2: Convert to fraction form
    401,370.12/602,147.34 = 135,123.48/x
  3. Step 3: Cross multiply
    401,370.12x = 602,147.34 × 135,123.48
  4. Step 4: Simplify right side
    401,370.12x = 81,364,244,053.54
  5. Step 5: Solve for x
    x = 81,364,244,053.54/401,370.12
  6. Step 6: Final answer
    x = 202,716.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.