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Finding the Fourth Proportional to 169,762.88, 254,699.55 and 81,004.88

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Solution

The fourth proportional to 169,762.88, 254,699.55 and 81,004.88 is: 121,533.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,762.88 : 254,699.55 = 81,004.88 : x
  2. Step 2: Convert to fraction form
    169,762.88/254,699.55 = 81,004.88/x
  3. Step 3: Cross multiply
    169,762.88x = 254,699.55 × 81,004.88
  4. Step 4: Simplify right side
    169,762.88x = 20,631,905,210.31
  5. Step 5: Solve for x
    x = 20,631,905,210.31/169,762.88
  6. Step 6: Final answer
    x = 121,533.67

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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.