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Finding the Fourth Proportional to 169,199.40, 253,798.40 and 75,639.54

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Solution

The fourth proportional to 169,199.40, 253,798.40 and 75,639.54 is: 113,459.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,199.40 : 253,798.40 = 75,639.54 : x
  2. Step 2: Convert to fraction form
    169,199.40/253,798.40 = 75,639.54/x
  3. Step 3: Cross multiply
    169,199.40x = 253,798.40 × 75,639.54
  4. Step 4: Simplify right side
    169,199.40x = 19,197,194,228.74
  5. Step 5: Solve for x
    x = 19,197,194,228.74/169,199.40
  6. Step 6: Final answer
    x = 113,459.00

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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.