Home / 164,539.40-246,809.10-81,422.60

Finding the Fourth Proportional to 164,539.40, 246,809.10 and 81,422.60

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Solution

The fourth proportional to 164,539.40, 246,809.10 and 81,422.60 is: 122,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,539.40 : 246,809.10 = 81,422.60 : x
  2. Step 2: Convert to fraction form
    164,539.40/246,809.10 = 81,422.60/x
  3. Step 3: Cross multiply
    164,539.40x = 246,809.10 × 81,422.60
  4. Step 4: Simplify right side
    164,539.40x = 20,095,838,625.66
  5. Step 5: Solve for x
    x = 20,095,838,625.66/164,539.40
  6. Step 6: Final answer
    x = 122,133.90

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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.