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Finding the Fourth Proportional to 134,419.08, 185,499 and 73,995.80

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Solution

The fourth proportional to 134,419.08, 185,499 and 73,995.80 is: 102,114.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,419.08 : 185,499 = 73,995.80 : x
  2. Step 2: Convert to fraction form
    134,419.08/185,499 = 73,995.80/x
  3. Step 3: Cross multiply
    134,419.08x = 185,499 × 73,995.80
  4. Step 4: Simplify right side
    134,419.08x = 13,726,146,904.20
  5. Step 5: Solve for x
    x = 13,726,146,904.20/134,419.08
  6. Step 6: Final answer
    x = 102,114.57

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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.