Home / 156,957.53-235,431.09-68,211.13

Finding the Fourth Proportional to 156,957.53, 235,431.09 and 68,211.13

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Solution

The fourth proportional to 156,957.53, 235,431.09 and 68,211.13 is: 102,314.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.53 : 235,431.09 = 68,211.13 : x
  2. Step 2: Convert to fraction form
    156,957.53/235,431.09 = 68,211.13/x
  3. Step 3: Cross multiply
    156,957.53x = 235,431.09 × 68,211.13
  4. Step 4: Simplify right side
    156,957.53x = 16,059,020,097.45
  5. Step 5: Solve for x
    x = 16,059,020,097.45/156,957.53
  6. Step 6: Final answer
    x = 102,314.43

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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.