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Finding the Fourth Proportional to 156,293.16, 215,684.16 and 84,674.94

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Solution

The fourth proportional to 156,293.16, 215,684.16 and 84,674.94 is: 116,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,293.16 : 215,684.16 = 84,674.94 : x
  2. Step 2: Convert to fraction form
    156,293.16/215,684.16 = 84,674.94/x
  3. Step 3: Cross multiply
    156,293.16x = 215,684.16 × 84,674.94
  4. Step 4: Simplify right side
    156,293.16x = 18,263,043,306.95
  5. Step 5: Solve for x
    x = 18,263,043,306.95/156,293.16
  6. Step 6: Final answer
    x = 116,851.20

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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.