Home / 156,740.25-216,295.76-85,118.73

Finding the Fourth Proportional to 156,740.25, 216,295.76 and 85,118.73

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Solution

The fourth proportional to 156,740.25, 216,295.76 and 85,118.73 is: 117,460.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.25 : 216,295.76 = 85,118.73 : x
  2. Step 2: Convert to fraction form
    156,740.25/216,295.76 = 85,118.73/x
  3. Step 3: Cross multiply
    156,740.25x = 216,295.76 × 85,118.73
  4. Step 4: Simplify right side
    156,740.25x = 18,410,819,969.99
  5. Step 5: Solve for x
    x = 18,410,819,969.99/156,740.25
  6. Step 6: Final answer
    x = 117,460.70

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1.5x scale

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.