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Finding the Fourth Proportional to 134,652, 185,818.74 and 74,222.64

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Solution

The fourth proportional to 134,652, 185,818.74 and 74,222.64 is: 102,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,652 : 185,818.74 = 74,222.64 : x
  2. Step 2: Convert to fraction form
    134,652/185,818.74 = 74,222.64/x
  3. Step 3: Cross multiply
    134,652x = 185,818.74 × 74,222.64
  4. Step 4: Simplify right side
    134,652x = 13,791,957,444.27
  5. Step 5: Solve for x
    x = 13,791,957,444.27/134,652
  6. Step 6: Final answer
    x = 102,426.68

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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.