Home / 156,969.06-216,620.01-85,349.55

Finding the Fourth Proportional to 156,969.06, 216,620.01 and 85,349.55

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Solution

The fourth proportional to 156,969.06, 216,620.01 and 85,349.55 is: 117,783.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,969.06 : 216,620.01 = 85,349.55 : x
  2. Step 2: Convert to fraction form
    156,969.06/216,620.01 = 85,349.55/x
  3. Step 3: Cross multiply
    156,969.06x = 216,620.01 × 85,349.55
  4. Step 4: Simplify right side
    156,969.06x = 18,488,420,374.50
  5. Step 5: Solve for x
    x = 18,488,420,374.50/156,969.06
  6. Step 6: Final answer
    x = 117,783.85

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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.