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Finding the Fourth Proportional to 105,444.99, 145,508.00 and 57,699.27

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Solution

The fourth proportional to 105,444.99, 145,508.00 and 57,699.27 is: 79,621.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,444.99 : 145,508.00 = 57,699.27 : x
  2. Step 2: Convert to fraction form
    105,444.99/145,508.00 = 57,699.27/x
  3. Step 3: Cross multiply
    105,444.99x = 145,508.00 × 57,699.27
  4. Step 4: Simplify right side
    105,444.99x = 8,395,705,090.66
  5. Step 5: Solve for x
    x = 8,395,705,090.66/105,444.99
  6. Step 6: Final answer
    x = 79,621.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.