Home / 156,901.40-235,219.83-68,088.01

Finding the Fourth Proportional to 156,901.40, 235,219.83 and 68,088.01

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Solution

The fourth proportional to 156,901.40, 235,219.83 and 68,088.01 is: 102,074.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.40 : 235,219.83 = 68,088.01 : x
  2. Step 2: Convert to fraction form
    156,901.40/235,219.83 = 68,088.01/x
  3. Step 3: Cross multiply
    156,901.40x = 235,219.83 × 68,088.01
  4. Step 4: Simplify right side
    156,901.40x = 16,015,648,961.14
  5. Step 5: Solve for x
    x = 16,015,648,961.14/156,901.40
  6. Step 6: Final answer
    x = 102,074.61

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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.