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Finding the Fourth Proportional to 146,835, 202,615.11 and 86,392.35

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Solution

The fourth proportional to 146,835, 202,615.11 and 86,392.35 is: 119,211.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,835 : 202,615.11 = 86,392.35 : x
  2. Step 2: Convert to fraction form
    146,835/202,615.11 = 86,392.35/x
  3. Step 3: Cross multiply
    146,835x = 202,615.11 × 86,392.35
  4. Step 4: Simplify right side
    146,835x = 17,504,395,498.41
  5. Step 5: Solve for x
    x = 17,504,395,498.41/146,835
  6. Step 6: Final answer
    x = 119,211.33

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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.