Home / 156,965.40-235,442.90-68,219.01

Finding the Fourth Proportional to 156,965.40, 235,442.90 and 68,219.01

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Solution

The fourth proportional to 156,965.40, 235,442.90 and 68,219.01 is: 102,326.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,965.40 : 235,442.90 = 68,219.01 : x
  2. Step 2: Convert to fraction form
    156,965.40/235,442.90 = 68,219.01/x
  3. Step 3: Cross multiply
    156,965.40x = 235,442.90 × 68,219.01
  4. Step 4: Simplify right side
    156,965.40x = 16,061,681,208.43
  5. Step 5: Solve for x
    x = 16,061,681,208.43/156,965.40
  6. Step 6: Final answer
    x = 102,326.25

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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.