Home / 156,652.10-235,051.05-81,856.70

Finding the Fourth Proportional to 156,652.10, 235,051.05 and 81,856.70

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Solution

The fourth proportional to 156,652.10, 235,051.05 and 81,856.70 is: 122,823.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,652.10 : 235,051.05 = 81,856.70 : x
  2. Step 2: Convert to fraction form
    156,652.10/235,051.05 = 81,856.70/x
  3. Step 3: Cross multiply
    156,652.10x = 235,051.05 × 81,856.70
  4. Step 4: Simplify right side
    156,652.10x = 19,240,503,284.54
  5. Step 5: Solve for x
    x = 19,240,503,284.54/156,652.10
  6. Step 6: Final answer
    x = 122,823.14

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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.