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Finding the Fourth Proportional to 134,679.64, 185,849.16 and 74,250.79

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Solution

The fourth proportional to 134,679.64, 185,849.16 and 74,250.79 is: 102,461.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,679.64 : 185,849.16 = 74,250.79 : x
  2. Step 2: Convert to fraction form
    134,679.64/185,849.16 = 74,250.79/x
  3. Step 3: Cross multiply
    134,679.64x = 185,849.16 × 74,250.79
  4. Step 4: Simplify right side
    134,679.64x = 13,799,446,950.84
  5. Step 5: Solve for x
    x = 13,799,446,950.84/134,679.64
  6. Step 6: Final answer
    x = 102,461.27

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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.