Home / 156,975.45-216,624.99-85,355.52

Finding the Fourth Proportional to 156,975.45, 216,624.99 and 85,355.52

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Solution

The fourth proportional to 156,975.45, 216,624.99 and 85,355.52 is: 117,790.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,975.45 : 216,624.99 = 85,355.52 : x
  2. Step 2: Convert to fraction form
    156,975.45/216,624.99 = 85,355.52/x
  3. Step 3: Cross multiply
    156,975.45x = 216,624.99 × 85,355.52
  4. Step 4: Simplify right side
    156,975.45x = 18,490,138,666.44
  5. Step 5: Solve for x
    x = 18,490,138,666.44/156,975.45
  6. Step 6: Final answer
    x = 117,790.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.