Home / 156,726.96-216,284.76-85,107.60

Finding the Fourth Proportional to 156,726.96, 216,284.76 and 85,107.60

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Solution

The fourth proportional to 156,726.96, 216,284.76 and 85,107.60 is: 117,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,726.96 : 216,284.76 = 85,107.60 : x
  2. Step 2: Convert to fraction form
    156,726.96/216,284.76 = 85,107.60/x
  3. Step 3: Cross multiply
    156,726.96x = 216,284.76 × 85,107.60
  4. Step 4: Simplify right side
    156,726.96x = 18,407,476,840.18
  5. Step 5: Solve for x
    x = 18,407,476,840.18/156,726.96
  6. Step 6: Final answer
    x = 117,449.33

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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.