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Finding the Fourth Proportional to 171,347.02, 257,094.04 and 66,239.80

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Solution

The fourth proportional to 171,347.02, 257,094.04 and 66,239.80 is: 99,388.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,347.02 : 257,094.04 = 66,239.80 : x
  2. Step 2: Convert to fraction form
    171,347.02/257,094.04 = 66,239.80/x
  3. Step 3: Cross multiply
    171,347.02x = 257,094.04 × 66,239.80
  4. Step 4: Simplify right side
    171,347.02x = 17,029,857,790.79
  5. Step 5: Solve for x
    x = 17,029,857,790.79/171,347.02
  6. Step 6: Final answer
    x = 99,388.12

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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.