Home / 258,410.21-356,613.80-142,117.61

Finding the Fourth Proportional to 258,410.21, 356,613.80 and 142,117.61

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Solution

The fourth proportional to 258,410.21, 356,613.80 and 142,117.61 is: 196,126.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,410.21 : 356,613.80 = 142,117.61 : x
  2. Step 2: Convert to fraction form
    258,410.21/356,613.80 = 142,117.61/x
  3. Step 3: Cross multiply
    258,410.21x = 356,613.80 × 142,117.61
  4. Step 4: Simplify right side
    258,410.21x = 50,681,098,455.36
  5. Step 5: Solve for x
    x = 50,681,098,455.36/258,410.21
  6. Step 6: Final answer
    x = 196,126.54

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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.