Home / 156,901.28-235,219.64-68,087.88

Finding the Fourth Proportional to 156,901.28, 235,219.64 and 68,087.88

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Solution

The fourth proportional to 156,901.28, 235,219.64 and 68,087.88 is: 102,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.28 : 235,219.64 = 68,087.88 : x
  2. Step 2: Convert to fraction form
    156,901.28/235,219.64 = 68,087.88/x
  3. Step 3: Cross multiply
    156,901.28x = 235,219.64 × 68,087.88
  4. Step 4: Simplify right side
    156,901.28x = 16,015,606,281.52
  5. Step 5: Solve for x
    x = 16,015,606,281.52/156,901.28
  6. Step 6: Final answer
    x = 102,074.42

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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.