Home / 158,947.40-238,421.10-133,286.60

Finding the Fourth Proportional to 158,947.40, 238,421.10 and 133,286.60

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Solution

The fourth proportional to 158,947.40, 238,421.10 and 133,286.60 is: 199,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,947.40 : 238,421.10 = 133,286.60 : x
  2. Step 2: Convert to fraction form
    158,947.40/238,421.10 = 133,286.60/x
  3. Step 3: Cross multiply
    158,947.40x = 238,421.10 × 133,286.60
  4. Step 4: Simplify right side
    158,947.40x = 31,778,337,787.26
  5. Step 5: Solve for x
    x = 31,778,337,787.26/158,947.40
  6. Step 6: Final answer
    x = 199,929.90

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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.