Home / 156,364.95-234,405.27-81,397.02

Finding the Fourth Proportional to 156,364.95, 234,405.27 and 81,397.02

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Solution

The fourth proportional to 156,364.95, 234,405.27 and 81,397.02 is: 122,021.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,364.95 : 234,405.27 = 81,397.02 : x
  2. Step 2: Convert to fraction form
    156,364.95/234,405.27 = 81,397.02/x
  3. Step 3: Cross multiply
    156,364.95x = 234,405.27 × 81,397.02
  4. Step 4: Simplify right side
    156,364.95x = 19,079,890,450.30
  5. Step 5: Solve for x
    x = 19,079,890,450.30/156,364.95
  6. Step 6: Final answer
    x = 122,021.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.