Home / 156,838.78-235,125.89-68,025.39

Finding the Fourth Proportional to 156,838.78, 235,125.89 and 68,025.39

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Solution

The fourth proportional to 156,838.78, 235,125.89 and 68,025.39 is: 101,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,838.78 : 235,125.89 = 68,025.39 : x
  2. Step 2: Convert to fraction form
    156,838.78/235,125.89 = 68,025.39/x
  3. Step 3: Cross multiply
    156,838.78x = 235,125.89 × 68,025.39
  4. Step 4: Simplify right side
    156,838.78x = 15,994,529,399.59
  5. Step 5: Solve for x
    x = 15,994,529,399.59/156,838.78
  6. Step 6: Final answer
    x = 101,980.70

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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.