Home / 156,972.10-235,458.15-68,268.10

Finding the Fourth Proportional to 156,972.10, 235,458.15 and 68,268.10

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Solution

The fourth proportional to 156,972.10, 235,458.15 and 68,268.10 is: 102,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.10 : 235,458.15 = 68,268.10 : x
  2. Step 2: Convert to fraction form
    156,972.10/235,458.15 = 68,268.10/x
  3. Step 3: Cross multiply
    156,972.10x = 235,458.15 × 68,268.10
  4. Step 4: Simplify right side
    156,972.10x = 16,074,280,530.02
  5. Step 5: Solve for x
    x = 16,074,280,530.02/156,972.10
  6. Step 6: Final answer
    x = 102,402.15

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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.