Home / 170,001.10-255,001.65-81,427.60

Finding the Fourth Proportional to 170,001.10, 255,001.65 and 81,427.60

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Solution

The fourth proportional to 170,001.10, 255,001.65 and 81,427.60 is: 122,141.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,001.10 : 255,001.65 = 81,427.60 : x
  2. Step 2: Convert to fraction form
    170,001.10/255,001.65 = 81,427.60/x
  3. Step 3: Cross multiply
    170,001.10x = 255,001.65 × 81,427.60
  4. Step 4: Simplify right side
    170,001.10x = 20,764,172,355.54
  5. Step 5: Solve for x
    x = 20,764,172,355.54/170,001.10
  6. Step 6: Final answer
    x = 122,141.40

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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.