Home / 164,712.40-247,068.60-81,768.40

Finding the Fourth Proportional to 164,712.40, 247,068.60 and 81,768.40

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Solution

The fourth proportional to 164,712.40, 247,068.60 and 81,768.40 is: 122,652.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,712.40 : 247,068.60 = 81,768.40 : x
  2. Step 2: Convert to fraction form
    164,712.40/247,068.60 = 81,768.40/x
  3. Step 3: Cross multiply
    164,712.40x = 247,068.60 × 81,768.40
  4. Step 4: Simplify right side
    164,712.40x = 20,202,404,112.24
  5. Step 5: Solve for x
    x = 20,202,404,112.24/164,712.40
  6. Step 6: Final answer
    x = 122,652.60

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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.