Home / 156,963.40-235,439.89-68,217.01

Finding the Fourth Proportional to 156,963.40, 235,439.89 and 68,217.01

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Solution

The fourth proportional to 156,963.40, 235,439.89 and 68,217.01 is: 102,323.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,963.40 : 235,439.89 = 68,217.01 : x
  2. Step 2: Convert to fraction form
    156,963.40/235,439.89 = 68,217.01/x
  3. Step 3: Cross multiply
    156,963.40x = 235,439.89 × 68,217.01
  4. Step 4: Simplify right side
    156,963.40x = 16,061,005,330.53
  5. Step 5: Solve for x
    x = 16,061,005,330.53/156,963.40
  6. Step 6: Final answer
    x = 102,323.25

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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.