Home / 156,965.80-235,488.39-68,235.16

Finding the Fourth Proportional to 156,965.80, 235,488.39 and 68,235.16

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Solution

The fourth proportional to 156,965.80, 235,488.39 and 68,235.16 is: 102,369.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.80 : 235,488.39 = 68,235.16 : x
  2. Step 2: Convert to fraction form
    156,965.80/235,488.39 = 68,235.16/x
  3. Step 3: Cross multiply
    156,965.80x = 235,488.39 × 68,235.16
  4. Step 4: Simplify right side
    156,965.80x = 16,068,587,969.79
  5. Step 5: Solve for x
    x = 16,068,587,969.79/156,965.80
  6. Step 6: Final answer
    x = 102,369.99

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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.