Home / 156,792.76-216,370.36-85,171.20

Finding the Fourth Proportional to 156,792.76, 216,370.36 and 85,171.20

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Solution

The fourth proportional to 156,792.76, 216,370.36 and 85,171.20 is: 117,534.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,792.76 : 216,370.36 = 85,171.20 : x
  2. Step 2: Convert to fraction form
    156,792.76/216,370.36 = 85,171.20/x
  3. Step 3: Cross multiply
    156,792.76x = 216,370.36 × 85,171.20
  4. Step 4: Simplify right side
    156,792.76x = 18,428,523,205.63
  5. Step 5: Solve for x
    x = 18,428,523,205.63/156,792.76
  6. Step 6: Final answer
    x = 117,534.27

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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.