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Finding the Fourth Proportional to 157,604.40, 217,486.08 and 85,983.84

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Solution

The fourth proportional to 157,604.40, 217,486.08 and 85,983.84 is: 118,653.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,604.40 : 217,486.08 = 85,983.84 : x
  2. Step 2: Convert to fraction form
    157,604.40/217,486.08 = 85,983.84/x
  3. Step 3: Cross multiply
    157,604.40x = 217,486.08 × 85,983.84
  4. Step 4: Simplify right side
    157,604.40x = 18,700,288,304.95
  5. Step 5: Solve for x
    x = 18,700,288,304.95/157,604.40
  6. Step 6: Final answer
    x = 118,653.34

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