Home / 164,543.90-246,815.85-81,427.10

Finding the Fourth Proportional to 164,543.90, 246,815.85 and 81,427.10

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Solution

The fourth proportional to 164,543.90, 246,815.85 and 81,427.10 is: 122,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,543.90 : 246,815.85 = 81,427.10 : x
  2. Step 2: Convert to fraction form
    164,543.90/246,815.85 = 81,427.10/x
  3. Step 3: Cross multiply
    164,543.90x = 246,815.85 × 81,427.10
  4. Step 4: Simplify right side
    164,543.90x = 20,097,498,899.54
  5. Step 5: Solve for x
    x = 20,097,498,899.54/164,543.90
  6. Step 6: Final answer
    x = 122,140.65

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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.