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Finding the Fourth Proportional to 163,991.63, 245,987.45 and 45,666.02

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Solution

The fourth proportional to 163,991.63, 245,987.45 and 45,666.02 is: 68,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,991.63 : 245,987.45 = 45,666.02 : x
  2. Step 2: Convert to fraction form
    163,991.63/245,987.45 = 45,666.02/x
  3. Step 3: Cross multiply
    163,991.63x = 245,987.45 × 45,666.02
  4. Step 4: Simplify right side
    163,991.63x = 11,233,267,811.45
  5. Step 5: Solve for x
    x = 11,233,267,811.45/163,991.63
  6. Step 6: Final answer
    x = 68,499.03

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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.