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Finding the Fourth Proportional to 170,539.60, 255,663.54 and 65,434

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Solution

The fourth proportional to 170,539.60, 255,663.54 and 65,434 is: 98,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,539.60 : 255,663.54 = 65,434 : x
  2. Step 2: Convert to fraction form
    170,539.60/255,663.54 = 65,434/x
  3. Step 3: Cross multiply
    170,539.60x = 255,663.54 × 65,434
  4. Step 4: Simplify right side
    170,539.60x = 16,729,088,076.36
  5. Step 5: Solve for x
    x = 16,729,088,076.36/170,539.60
  6. Step 6: Final answer
    x = 98,095.04

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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.